TY  - JOUR
AU  - S. E. Pustovoitov
TI  - Topological analysis of an elliptic billiard in a fourth-order potential field
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 2021
SP  - 8
EP  - 19
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_2021_5_a1/
LA  - ru
ID  - VMUMM_2021_5_a1
ER  -