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References
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Daletskii Yu.L., UMN, XXII:4 (1967), 3–54 |
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Berezanskii Yu.M., Razlozhenie po sobstvennym funktsiyam samosopryazhennykh operatorov, Naukova dumka, Kiev, 1965 |
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Frolov N.N., Matem. sb., 90 (1973), 403–414 |
