References
- Acta Sci. Math. v.33 Operators with a norm condition Ando, T.
- Publications De L'Institut Mathematique v.29 no.43 M-hyponormal operators Arora, S.C.;Kumar, R.
- Proc. Japan Acad. v.43 On the class of paranormal operators Furuta, T.
- A Hilbert space problem book Halmos, P.R.
- Tohoku Math. Journ. v.18 no.4 On a class of operators Istratescu, V.;Saito, T.;Yoshino, T.
- Bull. Korean Math. Soc. v.40 no.4 Properties of kth root of a hyponormal operator Ko, E.
- Lectures on hyponormal operators, Operator Theory Martin, M.;Putinar, M.
- Mathematica Japonicae v.19 no.1 On paranormal operators Shah, N.C.;Sheth, I.H.
- Rev. Roum. Math. Pures, et Appl. v.15 Some results on hyponormal operators Sheth, I.H.
- Far East J. math. Sci(FJMS) v.11 no.1 On generalized roots of hyponormal operators Yang, Y.;Kim, D.