Rajeswari KN, Gupta U. Characterization of $2\times 2$ nil-clean matrices over integral domains. J. Algebra Comb. Discrete Struct. Appl. [Internet]. 2018 Sep. 15 [cited 2026 Sep. 12];5(3):117-2. Available from: https://www.jacodesmath.com/index.php/jacodesmath/article/view/90