1. On the metrization of topological spaces;Alexandroff;Bull. Acad. Pol. Sci. Sér. Math.,1960
2. Mémoire sur les espaces topologiques compacts;Alexandroff;Verh. Akad. Wetensch. Amsterdam,1929
3. An addition theorem for the weight of sets lying in bicompcta;Arhangel'ski;Dokl. Akad. Nauk. SSSR,1959
4. On the metrization of topological spaces;Arhangel'ski;Bull. Acad. Pol. Sci. Sér. Math.,1960
5. Certain metrization theorems;Arhangel'ski;Usp. Math. Nauk,1963