On The Class of (K-N)* Quasi-N-Normal Operators on Hilbert Space. Iraqi Journal of Science, [S. l.], v. 58, n. 4B, p. 2172–2176, 2021. DOI: 10.24996/ijs.2017.58.4B.20. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/5612.. Acesso em: 19 may. 2024.