KhanM. S. “Existence of the Category $DTC_2 (K)$ Equivalent to the Given Category $KAC_2$”. Ukrains’kyi Matematychnyi Zhurnal 67, no. 8 (August 25, 2015): 1122–1133. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2050.