1. Abstract and Concrete Categories;Adámek,1990
2. On bicompact extensions of topological spaces;Alexandroff;Vestn. Mosk. Univ., Ser. Mat.,1959
3. Irreducible equivalence relations, Gleason spaces, and de Vries duality;Bezhanishvili;Appl. Categ. Struct.,2016
4. Topological Spaces;Čech,1966
5. Quasi-modal algebras;Celani;Math. Bohem.,2001