1. Biocompact sets and the topology of spaces;Arhangel'skiǐ;Dokl. Akad. Nauk SSSR,1963
2. Universal morphisms;Baayen,1964
3. Über nulldimensionale Räume;Banaschewski;Math. Nachr.,1955
4. Extensions of topological spaces;Banaschewski;Canad. Math. Bull.,1964
5. Projective covers in certain categories of topological spaces;Banaschewski;Proc. 2nd Prague Symposium,1966