D. Simson, “Tame comodule type, roiter bocses, and a geometry context for coalgebras”, Ukr. Mat. Zhurn., vol. 61, no. 6, pp. 810–833, Jun. 2009, Accessed: Apr. 07, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3060