TY  - JOUR
AU  - V. F. Tkachev
TI  - Generalization of a~theorem of H.~Poincar\'e on the non-existence of limit cycles and some other results
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1961
VL  - 16
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1961_16_5_a14/
LA  - ru
ID  - RM_1961_16_5_a14
ER  -