Structural and Spectral Properties of k-Quasi Class Q(N) and k-Quasi Class Q*(N) Operators. Eur. J. Pure Appl. Math. [Internet]. 2022 Oct. 31 [cited 2024 Dec. 22];15(4):1836-53. Available from: https://www.ejpam.com/index.php/ejpam/article/view/4580