%0 Journal Article
%A M. M. Lavrent'ev
%A V. R. Kireitov
%T On a class of mappings of bisurfaces in three-dimensional space
%J Doklady Akademii Nauk
%D 1974
%P 259-260
%V 216
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1974_216_2_a4/
%G ru
%F DAN_1974_216_2_a4