Klyuev, V. V., and Kоkоvkіn-Shcherbak N. I. “On the Minimization of the Number of Arithmetical Operation With One Transformation of Matrices”.
Ukrains’kyi Matematychnyi Zhurnal 18, no. 6 (October 27, 1966): 122–128. Accessed April 11, 2025.
https://umj.imath.kiev.ua/index.php/umj/article/view/8468.