TY  - JOUR
AU  - A. B. Givental'
TI  - Lagrangian imbeddings of surfaces and unfolded Whitney umbrella
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1986
SP  - 35
EP  - 41
VL  - 20
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1986_20_3_a2/
LA  - ru
ID  - FAA_1986_20_3_a2
ER  -