Alkan, M., and Ӧneş O. “The Radical Formula for Noncommutative Rings”.
Ukrains’kyi Matematychnyi Zhurnal
71, no. 9 (September 25, 2019): 1241–1248. Accessed April 11, 2025.
https://umj.imath.kiev.ua/index.php/umj/article/view/1512
.