%0 Journal Article
%A V. A. Gurvich
%A G. B. Shabat
%T Maps of surfaces and their schemes
%J Doklady Akademii Nauk
%D 1989
%P 1298-1303
%V 305
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1989_305_6_a2/
%G ru
%F DAN_1989_305_6_a2