%0 Journal Article
%A V. Rechnoi
%T Existence theorems for commutative diagrams
%J Lobachevskii journal of mathematics
%D 2005
%P 213-230
%V 17
%I mathdoc
%U http://geodesic.mathdoc.fr/item/LJM_2005_17_a7/
%G en
%F LJM_2005_17_a7