%0 Journal Article
%A A. M. Vinogradov
%T Some homotopy properites of the space of imbeddings of the circle into a sphere or a ball
%J Doklady Akademii Nauk
%D 1964
%P 999-1002
%V 156
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1964_156_5_a2/
%G ru
%F DAN_1964_156_5_a2