. L. H. Dong, H. Y. Li, and T. S. Ma, “A class of double crossed biproducts”, Ukr. Mat. Zhurn., vol. 70, no. 11, pp. 1533–1540, Nov. 2018, Accessed: Apr. 13, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1657