Some Properties of (M,k)-quasi Paranormal Operators on Hilbert Spaces. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 17, n. 3, p. 2073–2083, 2024. DOI: 10.29020/nybg.ejpam.v17i3.5303. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/5303. Acesso em: 13 dec. 2024.