TY  - JOUR
AU  - S. P. Novikov
AU  - I. Shmel'tser
TI  - Periodic solutions of Kirchhoff's equations for the free motion of a rigid body in a fluid and the extended theory of Lyusternik--Shnirel'man--Morse (LSM). I
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1981
SP  - 54
EP  - 66
VL  - 15
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1981_15_3_a4/
LA  - ru
ID  - FAA_1981_15_3_a4
ER  -