%0 Journal Article
%A N. V. Ivanov
%T Hielsen numbers of self-naps of surfaces
%J Zapiski Nauchnykh Seminarov POMI
%D 1982
%P 56-65
%V 122
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1982_122_a5/
%G ru
%F ZNSL_1982_122_a5