“Об операторе Риччи унимодулярных разрешимых метрических алгебр Ли. On the Ricci Operator of Unimodular Solvable Metric Lie Algebras”. Journal of Mathematics Mechanics and Computer Science 82, no. 3 (September 28, 2014): 3–11. Accessed July 5, 2026. https://bm.kaznu.kz/index.php/kaznu/article/view/64.