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Additional information
M. V. Lomonosov Moscow State University. Translated from Funktsional'nyi Analiz i Ego Prilozheniya, Vol. 20, No. 3, pp. 55–65, July–September, 1986.
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Sadovnichii, V.A., Lyubishkin, V.A. Finite-dimensional perturbations of discrete operators and formulas for traces. Funct Anal Its Appl 20, 214–223 (1986). https://doi.org/10.1007/BF01078473
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DOI: https://doi.org/10.1007/BF01078473