%0 Journal Article
%A M. Sh. Farber
%T Mappings into a circle with a minimal number of critical points
%J Doklady Akademii Nauk
%D 1984
%P 43-46
%V 279
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1984_279_1_a9/
%G ru
%F DAN_1984_279_1_a9