[1]
F. Behrouzi, “The Stone–Čech Compactification of Groupoids”, Ukr. Mat. Zhurn., vol. 67, no. 4, pp. 456–466, Apr. 2015, Accessed: Apr. 23, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1996