1.
Li J, Shangping W, Xiaoqin S, Xiaoqing S. Quasi-unit regularity and $QB$-rings. Ukr. Mat. Zhurn. [Internet]. 2012Mar.25 [cited 2024Nov.24];64(3):415-2. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2586