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Literature cited

  1. T. Ya. Azizov, “Spectra of certain classes of operators in Hilbert space,” Matem. Zametki,9, No. 3, 303–310 (1971).

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Translated from Matematicheskie Zametki, Vol. 13, No. 5, pp. 783–784, May, 1973.

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Shmul'yan, Y.L. Letter to the editor. Mathematical Notes of the Academy of Sciences of the USSR 13, 467 (1973). https://doi.org/10.1007/BF01147479

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  • DOI: https://doi.org/10.1007/BF01147479

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