1. On topologized fundamental subgroups and generalized coverings;Abdullahi Rashid;Bull. Iran. Math. Soc.,2017
2. Semicoverings: a generalization of covering space theory;Brazas;Homol. Homotopy Appl.,2012
3. Semicoverings, coverings, overlays and open subgroups of the quasitopological fundamental group;Brazas;Topol. Proc.,2014
4. Generalized covering space theories;Brazas;Theory Appl. Categ.,2015