KHAN, M. S. Existence of the Category $DTC_2 (K)$ Equivalent to the Given Category $KAC_2$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 8, p. 1122–1133, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2050. Acesso em: 5 dec. 2025.