TY  - JOUR
AU  - V. V. Vedyushkina
AU  - V. A. Kibkalo
AU  - S. E. Pustovoitov
TI  - Realization of focal singularities of integrable systems using billiard books with a Hooke potential field
JO  - Čebyševskij sbornik
PY  - 2021
SP  - 44
EP  - 57
VL  - 22
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CHEB_2021_22_5_a4/
LA  - ru
ID  - CHEB_2021_22_5_a4
ER  -