Literature Cited
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Additional information
Kiev Institute of Civil Aviation Engineers. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 14, No. 3, pp. 333–344, March, 1971.
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Valeev, K.G. The investigation of fixed points of point-to-point mappings. Radiophys Quantum Electron 14, 265–274 (1971). https://doi.org/10.1007/BF01030707
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DOI: https://doi.org/10.1007/BF01030707