%0 Journal Article
%A D. B. Fuchs
%T Duality of functors in the category of homotopy types
%J Doklady Akademii Nauk
%D 1967
%P 1232-1235
%V 175
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1967_175_6_a8/
%G ru
%F DAN_1967_175_6_a8