TY  - JOUR
AU  - I. I. Kosenko
TI  - Topological degree and approximation of solutions for nonregular problems of mechanics: Oscillations of satellites on elliptic orbits
JO  - Contemporary Mathematics. Fundamental Directions
PY  - 2006
SP  - 68
EP  - 95
VL  - 16
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMFD_2006_16_a5/
LA  - ru
ID  - CMFD_2006_16_a5
ER  -