Skurikhin, Roman, Sergiy Gefter, and Eugene Karolinsky. “Closed Equivalence Relations on Compact Spaces and Pairs of Commutative C*-Algebras: A Categorical Approach”. Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics 102 (December 11, 2025): 57-67. Accessed January 11, 2026. https://periodicals.karazin.ua/mech_math/article/view/27703.