%0 Journal Article
%A V. M. Nezhinskii
%T Groups of classes of pseudo-homotopic singular links.~I
%J Zapiski Nauchnykh Seminarov POMI
%D 1988
%P 114-124
%V 168
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1988_168_a9/
%G ru
%F ZNSL_1988_168_a9