1. Topological Groups and Related Structures;Arkhangel'skii,2008
2. Sequential continuity and submeasurable cardinals;Balcar;Topol. Appl.,2001
3. On the concept of reflections in general topology;Herrlich,1969
4. Productivity of coreflective subcategories of topological groups;Herrlich;Comment. Math. Univ. Carol.,1999
5. Category Theory;Herrlich,1979