%0 Journal Article %A V. G. Pestov %T A class of almost metrizable topological groups which is not closed with respect to extensions %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1985 %P 72-73 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1985_4_a14/ %G ru %F VMUMM_1985_4_a14