TY  - JOUR
AU  - V. A. Proshkin
TI  - An extremal property of orbits in the Solar system
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 2019
SP  - 75
EP  - 79
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_2019_3_a12/
LA  - ru
ID  - VMUMM_2019_3_a12
ER  -