%0 Journal Article
%A R. K. Kolde
%A Ü. G. Lumiste
%A A. G. Fleischer
%T VI Baltic Conference on Contemporary Problems of Differential Geometry and their Applications
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1985
%V 40
%N 2
%U http://geodesic.mathdoc.fr/item/RM_1985_40_2_a30/
%G ru
%F RM_1985_40_2_a30