%0 Journal Article
%A A. B. Givental'
%T Lagrangian imbeddings of surfaces and unfolded Whitney umbrella
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1986
%P 35-41
%V 20
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1986_20_3_a2/
%G ru
%F FAA_1986_20_3_a2