Konyrkhanova, A.A., and V.A. Roman’kov. “On Solvability of Commutator Equations in Lie Algebras”. Bulletin of the Karaganda University. Mathematics Series 85, no. 1 (March 30, 2017): 57–64. Accessed September 7, 2025. http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/146.