%0 Journal Article
%A S. M. Natanzon
%T Supercoverings, $SNEC$-groups, and interior groups of Riemann and Klein supersurfaces
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1990
%P 225-226
%V 45
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1990_45_2_a13/
%G en
%F RM_1990_45_2_a13