%0 Journal Article
%A N. Hadzhiivanov
%T Extension of mappings into spheres and P. S. Aleksandrov's problem of bicompact compressions
%J Doklady Akademii Nauk
%D 1970
%P 525-527
%V 194
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_194_3_a12/
%G ru
%F DAN_1970_194_3_a12