C. S. P, N. S. M, A. V. J. \(\mathcal{D}\)-squares and \(E\)-squares. Comm. Math. Appl. [Internet]. 2021 Mar. 31 [cited 2024 Nov. 22];12(1):213-9. Available from: http://rgnpublications.com/journals/index.php/cma/article/view/1456