TY  - JOUR
AU  - S. P. Novikov
TI  - Multivalued functions and functionals. An analogue of the Morse theory
JO  - Doklady Akademii Nauk
PY  - 1981
SP  - 31
EP  - 35
VL  - 260
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1981_260_1_a6/
LA  - ru
ID  - DAN_1981_260_1_a6
ER  -