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Nahnybida, M. I.; Bab’yuk, L. G. On the equivalence of integral perturbations of multiplication operators by the independent variable. (Ukrainian) Zbl 0974.47507 Mat. Stud. 3, 85-90 (1994). MSC: 47A55 PDFBibTeX XMLCite \textit{M. I. Nahnybida} and \textit{L. G. Bab'yuk}, Mat. Stud. 3, 85--90 (1994; Zbl 0974.47507)