@article{VMUMM_1985_4_a14, author = {V. G. Pestov}, title = {A class of almost metrizable topological groups which is not closed with respect to extensions}, journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika}, pages = {72--73}, publisher = {mathdoc}, number = {4}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_4_a14/} }