%0 Journal Article
%A S. A. Melikhov
%T The van Kampen Obstruction and Its Relatives
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2009
%P 149-183
%V 266
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_2009_266_a8/
%G en
%F TM_2009_266_a8