Shchedryk, V. P. “The Left Greatest Common Divisor and the Left Least Common Multiple of All Solutions of the Matrix Equation BX = A over a Commutative Elementary Divisor Domain”. Ukrains’kyi Matematychnyi Zhurnal 73, no. 2 (February 22, 2021): 261–267. Accessed April 11, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/6321.