TY  - JOUR
AU  - G. A. Gal'perin
TI  - The concept of the center of mass of a system of mass points in
JO  - Doklady Akademii Nauk
PY  - 1988
SP  - 1039
EP  - 1044
VL  - 302
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1988_302_5_a2/
LA  - ru
ID  - DAN_1988_302_5_a2
ER  -