%0 Journal Article
%A A. F. Lapko
%A L. Z. Rumshiskii
%A L. E. Sadovskii
%A N. I. Simonov
%T Conference of Chairmen of Departments of General and Special Mathematics of National Institutions of Higher Education
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1976
%V 31
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1976_31_2_a22/
%G ru
%F RM_1976_31_2_a22