Skip to main content

Discoveries in Marine Mammal Hearing

  • Chapter
  • First Online:
A History of Discoveries on Hearing

Part of the book series: Springer Handbook of Auditory Research ((SHAR,volume 77))

  • 229 Accesses

Abstract

Early studies of marine mammals underwater were driven by awe, imagination, and the wealth they represented from oil, bone, and flesh. Aristotle recognized that these animals are mammals and wrote of their unusual acoustic abilities. Later, scientists erroneously categorized them as fishes until Linnaeus restored them to Mammalia. Not until the mid-twentieth century, when new tools for underwater acoustics appeared, was it revealed that marine mammals rely primarily on hearing for communicating, finding prey, and detecting predators. With more sophisticated technology in the 1950s, field recordings and behavioral work with captive marine mammals showed that they produce and detect sounds ranging from infrasonic to ultrasonic frequencies. Hearing underwater is accomplished by an essentially mammalian auditory system that re-adapted to water, and some species have ultrasonic inner ears like those of bats, but with unique fatty tissues for reception of water-borne sound. From 1960 onward, advances were made particularly in understanding the mechanisms of dolphin biosonar. Recent research initiated studies on hearing in free-ranging animals and broadened the field to more species, but many of the original puzzles remain unsolved and are still being investigated today.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 149.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 199.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Notes

  1. 1.

    First published in 1966 as a technical report: US Naval Ordnance Test Station Report T. P. 4178, 1966, 28 pp.

References

  • Andersen S (1970) Auditory sensitivity of the harbour porpoise, Phocoena phocoena. In: Pilleri G (ed) Investigations on Cetacea, vol 2. Institute for Brain Research, Bern, pp 255–259

    Google Scholar 

  • Aristotle 350 BCE (1910) The history of animals. Book 1, Section 11 (trans: Thompson DW). John Bell, London. http://www.esp.org/books/aristotle/history-of-animals/html/

  • Au WWL (2015) History of dolphin biosonar research. Acoust Today 11(4):10–17

    Google Scholar 

  • Au WWL, Moore PB (2000) Critical ratio and critical bandwidth for Atlantic bottlenose dolphin. J Acoust Soc Am 88:1635–1638

    Article  Google Scholar 

  • Barnes LG, Domning DP and Ray CE (1985) Status of studies on fossil marine mammals. Mar Mamm Sci 1:15–53

    Google Scholar 

  • Beddard FE (1900) A book of whales. G.P. Putnam’s Sons, New York

    Google Scholar 

  • Bibikov NG (1992) Auditory brainstem responses in the harbor porpoise (Phocoena phocoena). In: Thomas J, Kastelein R, Supin AY (eds) Marine mammal sensory systems. Plenum Press, New York, pp 197–211

    Chapter  Google Scholar 

  • Boenninghaus G (1904) Das Ohr des Zahnwales zugleich ein Beitrag zur Theorie der Schalleitung. Eine biologische Studie Zool Jahrb (Anatomie) 19:13–360

    Google Scholar 

  • Broughton WB (1963) Glossarial index. In: Busnel RG (ed) Acoustic behavior of animals. Elsevier, London, pp 824–910

    Google Scholar 

  • Bullfinch T (1903) The age of fables or beauties of mythology. 1855 edition: Klapp WH. Henry Altemus Co., Philadelphia. https://www.google.com/books/edition/_/606CAAAAIAAJ?hl=en&gbpv=1

  • Bullock TH, Ridgway SH (1972) Evoked potentials in the central auditory system of alert porpoises to their own and artificial sounds. J Neurobiol 3:79–99

    Article  CAS  PubMed  Google Scholar 

  • Bullock TH, Grinnell AD, Ikezono E, Kameda K, Katsuki Y, Nomoto M, Sato O, Suga N, Yanagisawa K (1968) Electrophysiological studies of central auditory mechanisms in cetaceans. Z Vgl Physiol 59:117–156

    Article  Google Scholar 

  • Bullock TH, Ridgway SH, Suga N (1971) Acoustically evoked potentials in midbrain auditory structures in sea lions (Pinnipedia). Z Vgl Physiol 74:372–387

    Article  Google Scholar 

  • Burdin VI, Markov VI, Reznik AM, Skornyakov VM, Chupakov AG (1973) Determination of the just noticeable difference for white noise in the Black Sea bottlenose dolphin (Tursiops truncatus ponticus barabasch). In: Mills H (ed and trans) Morphology and ecology of marine mammals: seals, dolphins, and porpoises. Wiley, New York, pp 169–173

    Google Scholar 

  • Busnel R-G, Fish JF (1966) Animal sonar systems, NATO Advanced Study Institute (ASIAS), vol 28. Springer

    Google Scholar 

  • Caldwell MC, Caldwell DK (1965) Individualized whistle contours in bottlenose dolphins (Tursiops truncatus). Nature 207:434–435

    Article  Google Scholar 

  • CERWG (2006) Annex 9: The crown right to whales. Final report. 8 pp

    Google Scholar 

  • Clarke JGD (1946) Seal-hunting in the Stone Age of North-Western Europe: a study in economic prehistory. Proc Prehist Soc 12:12–48

    Article  Google Scholar 

  • Dolphin WF, Mountain DC (1992) The envelope following response: scalp potential elicited in the Mongolian gerbil using SAM acoustic stimuli. Hear Res 58:70–78

    Article  CAS  PubMed  Google Scholar 

  • Domning DP (1982) Evolution of manatees: a speculative history. J. Paleontol 56:599–619

    Google Scholar 

  • Dourdeville KM (2019) The William E. Schevill and Barbara Lawrence legacy in marine mammal science. In: Brophy CC (ed) The voices of marine mammals. Old Dartmouth Historical Society/New Bedford Whaling Museum, New Bedford, pp 31–39

    Google Scholar 

  • Dudok van Heel W (1959) Audio-direction finding in the porpoise (Phocaena phocaena). Nature 183:1063. https://doi.org/10.1038/1831063a0

    Article  Google Scholar 

  • Dudok van Heel WH (1962) Sound and Cetacea. Neth J Sea Res 1:407–507

    Article  Google Scholar 

  • Evans WE (1973) Echolocation by marine delphinids and one species of fresh-water dolphin. J Acoust Soc Am 54:191–199

    Article  Google Scholar 

  • Fletcher H (1940) Auditory patterns. Rev Mod Phys 12:47–65

    Article  Google Scholar 

  • Fordyce RE (1980) Whale evolution and Oligocene southern ocean environments. Palaeogeogr Palaeoclimatol Palaeoecol 31:319–336

    Article  Google Scholar 

  • Fraser FC, Purves PE (1954) Hearing in cetaceans. Bull Br Mus 2:103–116

    Google Scholar 

  • Gingerich PD, Wells NA, Russell DE, Shah SM (1983) Origin of whales in epicontinental remnant seas: new evidence from the early Eocene of Pakistan. Science 220:403–406

    Article  CAS  PubMed  Google Scholar 

  • Hawkins Jr, JE, Stevens SS (1950) The masking of pure tones and of speech by white noise. J Acoust Soc Am 22:6–13

    Google Scholar 

  • Herman LM, Pack AA, Spitz SS, Herman EYK, Rose K, Hakala S, Deakos MH (2013) Humpback whale song: who sings? Behav Ecol Sociobiol 67:1653–1663

    Article  Google Scholar 

  • Hunter J (1787) Observations on the structure and oeconomy of whales. Philos Trans R Soc Lond 77:371–450

    Google Scholar 

  • Jacobs DW, Hall JD (1972) Auditory thresholds of a fresh water dolphin, Inia geoffrensis Blainville. J Acoust Soc Am 51:530–533

    Article  Google Scholar 

  • Janik VM, Sayigh LS (2013) Communication in bottlenose dolphins: 50 years of signature whistle research. J Comp Physiol A 199:479–489

    Article  Google Scholar 

  • Johnson CS (1967) Sound detection thresholds in marine mammals. In: Tavolga WN (ed) Marine bioacoustics II. Pregamon, Oxford, pp 247–260

    Google Scholar 

  • Johnson CS (1968) Masked tonal thresholds in the bottlenosed porpoise. J Acoust Soc Am 44:965–967

    Article  CAS  PubMed  Google Scholar 

  • Kastelein RA, Bunskoek P, Hagedoorn ML Au, WWL, de Haan D (2002) Audiogram of a harbor porpoise (Phocoena phocoena) measured with narrow-band frequency-modulated signals. J Acoust Soc Am 112:334–344

    Google Scholar 

  • Kawamura A (1980) A review of food of balaenopterid whales. Sci Rep Whales Res Inst 32:155–197

    Google Scholar 

  • Kellogg R (1928) The history of whales: their adaptation to life in the water (concluded). Q Rev Biol 3:174–208

    Article  Google Scholar 

  • Kellogg WN (1958) Echo ranging in the porpoise. Science 128:982–988

    Article  CAS  PubMed  Google Scholar 

  • Kellogg WN, Kohler R, Morris HN (1953) Porpoise sounds as sonar signals. Science 117:239–243

    Article  CAS  PubMed  Google Scholar 

  • Ketten DR (1992) The marine mammal ear: specializations for aquatic audition and echolocation. In: Webster D, Fay R, Popper A (eds) The evolutionary biology of hearing. Springer, New York, pp 717–750

    Chapter  Google Scholar 

  • Ketten DR (2000) Cetacean ears. In: Au WWL, Fay RRR, Popper AN (eds) Hearing by whales and dolphins. Springer, New York, pp 43–108

    Chapter  Google Scholar 

  • Ketten DR, Simmons JA, Riquimaroux H, Simmons AM (2021) Functional analyses of peripheral auditory adaptations related to echolocation in air vs. water. Front Ecol Evol 9:661216. https://www.frontiersin.org/article/10.3389/fevo.2021.661216

    Article  Google Scholar 

  • Kim N, Homma K, Puria S (2011) Inertial bone conduction: symmetric and anti-symmetric components. J Assoc Res Otolaryngol 12(3):261–279

    Article  PubMed  PubMed Central  Google Scholar 

  • Koopman HN, Budge SM, Ketten DR, Iverson SJ (2006) The topographical distribution of lipids inside the mandibular fat bodies of odontocetes: remarkable complexity and consistency. IEEE J Ocean Eng 31(1):95–106

    Google Scholar 

  • Mackay RS (1987) Whale heads and ray diagrams. Mar Mamm Sci 3(3):283–285

    Article  Google Scholar 

  • McBride AF (1940) Meet mister porpoise. Nat Hist 45:16–29

    Google Scholar 

  • McBride AF (1956) Evidence for echolocation by cetaceans. Deep-Sea Res 3:153–154

    Google Scholar 

  • McCormack JG, Wever EG, Palin J, Ridgway SH (1970) Sound conduction in the dolphin ear. J Acoust Soc Am 48:1418–1428

    Article  Google Scholar 

  • Møhl B (1964) Preliminary studies on hearing in seals. Videnskabelige meddelelser fra Dansk naturhistorisk forening i Kjöbenhavn 127:283–294

    Google Scholar 

  • Møhl B (1968) Auditory sensitivity of the common seal in air and water. J Aud Res 8:27–38

    Google Scholar 

  • Møhl B, Ronald K (1975) The peripheral auditory system of the harp seal, Pagophilus groenlandicus (Erxleben, 1777). Rapports et Procès-Verbaux des Réunions 169:516–523

    Google Scholar 

  • Moore PWB (1975) Underwater localization of click and pulsed pure-tone signals by the California sea lion (Zalophus californianus). J Acoust Soc Am 57:406–410

    Article  CAS  PubMed  Google Scholar 

  • Moore PWB, Au WL (1975) Underwater localization of pulsed pure tones by the California sea lion (Zalophus californianus). J Acoust Soc Am 58:721–727

    Article  CAS  PubMed  Google Scholar 

  • Moore P, Popper AN (2019) Heptuna’s contributions to biosonar. Acoust Today 15(1):44–52

    Article  Google Scholar 

  • Moore PWB, Schusterman RJ (1976) Discrimination of pure-tone intensities by the California sea lion. J Acoust Soc Am 60:1405–1407

    Article  CAS  PubMed  Google Scholar 

  • Moore PWB, Pawloski DA, Dankiewicz L (1995) Interaural time and intensity difference thresholds in the bottlenose dolphin (Tursiops truncatus). In: Kastelein RA, Thomas JA, Nachtigall PE (eds) Sensory systems of aquatic mammals. DeSpil Publishers, Woerden, pp 11–25

    Google Scholar 

  • Mills AW (1972) Auditory localization. In: Tobias, JV (ed) Foundations of modern auditory theory, Vol. II. Academic Press, New York, pp 303–348

    Google Scholar 

  • Nachtigall PE, Moore PWB (eds) (1988) Animal sonar: processes and performance NATO advanced study institute on animal sonar systems. Plenum Press

    Google Scholar 

  • Norris KS (1964) Some problems of echolocation in cetaceans. In: Tavolga WN (ed) Marine bio-acoustics. Pergamon Press, New York, pp 317–336

    Google Scholar 

  • Norris KS (1968) The evolution of acoustic mechanisms in odontocete cetaceans. In: Drake ET (ed) Evolution and environment, a symposium presented on the occasion of the one hundredth anniversary of the foundation of Peabody Museum of Natural History at Yale University. Yale University Press, New Haven, pp 297–324

    Google Scholar 

  • Norris KS, Harvey GW (1974) Sound transmission in the porpoise head. J Acoust Soc Am 56:659–664

    Article  CAS  PubMed  Google Scholar 

  • Norris KS, Prescott JH, Asa-Dorian PV, Perkins P (1961) An experimental demonstration of echolocation behavior in the porpoise, Tursiops truncatus (Montagu). Biol Bull 120:163–176

    Article  Google Scholar 

  • Parry WE (1821) Journal of a voyage for the discovery of the north-west passage from the Atlantic to the Pacific. Adam Small, Philadelphia

    Google Scholar 

  • Payne R (1995) Among whales. Scribner. 431 pp

    Google Scholar 

  • Payne RS, McVay S (1971) Songs of humpback whales. Science 173:585–597

    Article  CAS  PubMed  Google Scholar 

  • Poulter TC (1966) The use of active sonar by the California sea lion. J Aud Res 6:165–173

    Google Scholar 

  • Ray GC, Watkins WA, Burns JJ (1969) The underwater song of Erignathus (Bearded seal). Zoologica 54:79–82

    Google Scholar 

  • Reichmuth C, Holt MM, Mulsow J, Sills JM, Southall BL (2013) Comparative assessment of amphibious hearing in pinnipeds. J Comp Physiol A 199:491–507

    Article  Google Scholar 

  • Renaud DL, Popper AN (1975) Sound localization by the bottlenose porpoise Tursiops truncatus. J Exp Biol 63:569–585

    Article  CAS  PubMed  Google Scholar 

  • Reysenbach de Haan FW (1957) Hearing in whales. Acta Otolaryngol Suppl 134:1–114

    CAS  PubMed  Google Scholar 

  • Ridgway S (2008) History of veterinary medicine and marine mammals: a personal perspective. Aquat Mamm 34:471–513. https://doi.org/10.1578/AM.34.3.2008.471

    Article  Google Scholar 

  • Romero A (2012) When whales became mammals: the scientific journey of cetaceans from fish to mammals in the history of science. In: New approaches to the study of marine mammals. InTech. https://doi.org/10.5772/50811

    Chapter  Google Scholar 

  • Rosel PE, Wilcox LA, Yamada TK, Mullin KD (2021) A new species of baleen whale (Balaenoptera) from the Gulf of Mexico, with a review of its geographic distribution. Mar Mamm Sci 37:577–610

    Article  Google Scholar 

  • Schevill WE, Lawrence B (1949) Underwater listening to the white porpoise (Delphinapterus leucas). Science 109:143–144

    Article  CAS  PubMed  Google Scholar 

  • Schevill WE, Lawrence B (1953) High-frequency auditory response of a bottlenosed porpoise, Tursiops truncatus (Montagu). J Acoust Soc Am 25:1016–1017

    Article  Google Scholar 

  • Schevill WE, Lawrence B (1956) Food-finding by a captive porpoise (Tursiops truncatus). Beviora 53:1–15

    Google Scholar 

  • Schusterman RJ (1967) Perception and determinants of underwater localization in the California sea lion. In: Busnel R-G (ed) Animal sonar systems. Laboratoire de Physiologie Acoustique, Jouy-en-Josas, pp 535–617

    Google Scholar 

  • Schusterman RJ, Moore PW (1978) The upper limit of underwater frequency discrimination in the California sea lion. J Acoust Soc Am 63:1591–1595

    Article  CAS  PubMed  Google Scholar 

  • Schusterman RJ, Balliet RF, Nixon J (1972) Underwater audiogram of the California sea lion by the conditioned vocalization technique. J Exp Anal Behav 17:339–350

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Sørensen K, Christensen-Dalsgaard J, Wahlberg M (2022) Is human underwater hearing mediated by bone conduction? Hear Res 420:108484., ISSN 0378-5955. https://doi.org/10.1016/j.heares.2022.108484

    Article  PubMed  Google Scholar 

  • Southall BL, Finneran JJ, Reichmuth C, Nachtigall PE, Ketten DR, Bowles AE, Ellison WT, Nowacek DP, Tyack PL (2019) Marine mammal noise exposure criteria: updated scientific recommendations for residual hearing effects. Aquat Mamm 45:125–232

    Article  Google Scholar 

  • Supin AY, Popov VV (1990) Frequency selectivity of the auditory system of the bottlenosed dolphin Tursiops truncatus. In: Thomas JA, Kastelein RA (eds) Sensory abilities of cetaceans: laboratory and field evidence. Plenum Press, New York, pp 385–393

    Chapter  Google Scholar 

  • Supin AY, Popov VV (1993) Direction-dependent spectral sensitivity and interaural spectral difference in a dolphin: evoked potential study. J Acoust Soc Am 93:3490–3495

    Article  Google Scholar 

  • Tavolga WN, Wodinsky J (1963) Pure tone thresholds in nine species of marine teleosts. Am Mus Nat Hist Bull 126:179–239

    Google Scholar 

  • Terhune JM (1974) Directional hearing of a harbor seal in air and water. J Acoust Soc Am 56:1862–1865

    Google Scholar 

  • Terhune JM, Ronald K (1971) The harp seal, Pagophilus groenlandicus (Erxleben, 1777). X. The air audiogram. Can J Zool 49:385–390

    Google Scholar 

  • Terhune JM, Ronald K (1972) The harp seal, Pagophilus groenlandicus (Erxleben, 1777). III. The underwater audiogram. Can J Zool 50:565–569

    Google Scholar 

  • Terhune JM, Ronald K (1975a) Masked hearing thresholds of ringed seals. J Acoust Soc Am 58:515–516

    Article  CAS  PubMed  Google Scholar 

  • Terhune JM, Ronald K (1975b) Underwater hearing sensitivity of two ringed seals (Pusa hispida). Can J Zool 53:227–231

    Article  CAS  PubMed  Google Scholar 

  • Terhune JM, Ronald K (1976) The upper frequency limit of ringed seal hearing. Can J Zool 54:1226–1229

    Article  CAS  PubMed  Google Scholar 

  • Thewissen JGM, Hussain ST, Arif M (1994) Fossil evidence for the origin of aquatic locomotion in archaeocete whales. Science 263:210–212

    Article  CAS  PubMed  Google Scholar 

  • Thomas J, Kastelein R (eds) (1990) Sensory abilities of cetaceans: field and laboratory evidence, NATO science series A: life science, vol 196. Plenum Press. 714 pp

    Google Scholar 

  • Thomas J, Kastelein R, Supin A (eds) (1992) Marine mammal sensory systems. Plenum Press, New York

    Google Scholar 

  • Thompson RKR, Herman LM (1975) Underwater frequency discrimination in the bottlenosed dolphin (1-140 kHz) and the human (1-8 kHz). J Acoust Soc Am 57:943–948

    Google Scholar 

  • Varnassi U, Malins DG (1971) Unique lipids of the porpoise (Tursiops gilli): Differences in triacyl glycerols and wax esters of acoustic (mandibular canal and melon) and blubber tissues. Biochem Biophys Acta 231:415

    Google Scholar 

  • von Békésy G (1948) Vibrations of the head in a sound field and its role in hearing by bone conduction. J Acoust Soc Am 20:749–760

    Article  Google Scholar 

  • Watkins WA, Schevill WE (1977) Sperm whale codas. J Acoust Soc Am 62:1485–1490

    Article  Google Scholar 

  • Watkins WA, Wartzok D (1985) Sensory biophysics of marine mammals. Mar Mamm Sci 1:219–260

    Article  Google Scholar 

  • Watson CS (1963) Masking of tones by noise for the cat. J Acoust Soc Am 35:167–172

    Google Scholar 

  • West CD (1985) The relationship of the spiral turns of the cochlea and the length of the basilar membrane to the range of audible frequencies in ground dwelling mammals. J Acoust Soc Am 77:1091–1101

    Article  CAS  PubMed  Google Scholar 

  • Wever EG, McCormick JG, Palin J, Ridgway SH (1971a) The cochlea of the dolphin, Tursiops truncatus: general morphology. Proc Natl Acad Sci U S A 68:2381–2385

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Wever EG, McCormick JG, Palin J, Ridgway SH (1971b) Cochlea of the dolphin, Tursiops truncatus: the basilar membrane. Proc Natl Acad Sci U S A 68:2708–2711

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Wever EG, McCormick JG, Palin J, Ridgway SH (1971c) The cochlea of the dolphin, Tursiops truncatus: hair cells and ganglion cells. Proc Natl Acad Sci U S A 68:2908–2912

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Wever EG, McCormick JG, Palin J, Ridgway SH (1972) Cochlear structure in the dolphin Lagenorhynchus obliquidens. Proc Natl Acad Sci U S A 69:657–661

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Yamada M, Yoshizaki F (1959) Osseous labyrinth of Cetacea. Sci Rep Whales Res Inst 14:291–304

    Google Scholar 

Download references

Acknowledgments

There are too many exceptional scientists who advanced our knowledge of marine mammals to properly acknowledge all. This chapter is dedicated to a few whom we had the privilege to know and were fortunate to have as mentors, colleagues, and friends. Bill Watkins and Bill Schevill, assisted in his early work by his wife, Barbara Lawrence, an outstanding scientist in her own right, laid the foundation for and influenced marine mammal acoustic work over the subsequent 70 years. In addition to their many publications and archived recordings, they set the standard for inventing and using state-of-the-art equipment coupled with insightful natural history observations to unravel crucial questions about these fascinating mammals. They also imbued the field with their high integrity.

Sam Ridgway was the epitome of a dedicated veterinarian and innovative scientist who approached his work with great intellect and his friends with great humor. He is rightly considered to have created the field of marine mammal medicine, and his work on dolphin hearing set critical benchmarks for that research. He is arguably one of the giants upon whose shoulders all future marine mammal researchers stand.

Jeanette Thomas was a pioneer, who bravely entered a field in which women were rare. To that, add her dedication to mentoring young scientists coupled with a sparkling personality. These qualities made her not only a great scientist but also a successful organizer of multiple international meetings that turned marine mammal science into a truly global discipline.

Dr. Doris Meyerdiercks and Dr. Dorothe Poggel of the Hanse-Wissenschaftskolleg (HWK) provided invaluable advice, support, and encouragement throughout this entire project. This is publication #1581 from The Institute of Environment at Florida International University.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Douglas Wartzok .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2024 Springer Nature Switzerland AG

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Wartzok, D., Ketten, D.R. (2024). Discoveries in Marine Mammal Hearing. In: Ketten, D.R., Coffin, A.B., Fay, R.R., Popper, A.N. (eds) A History of Discoveries on Hearing. Springer Handbook of Auditory Research, vol 77. Springer, Cham. https://doi.org/10.1007/978-3-031-41320-9_7

Download citation

Publish with us

Policies and ethics