1. Some consistent results on Lindelöfness and calibre;Mumin;Chinese Ann. Math. Ser. B,1989
2. The space of all subsets of a topological space;Oc̃an;Dokl. Acad. Nauk USSR,1941
3. Set-theoretic problems in Moore spaces;Reed,1990
4. Cardinal invariants in compact Hausdorff spaces;Shapirovskii;Amer. Math. Soc. Transl.,1987