TY  - JOUR
AU  - A. V. Makhorkin
TI  - Bifurcation of the periodic solution of a completely integrable Pfaffian system
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 1084
EP  - 1086
VL  - 23
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_6_a21/
LA  - ru
ID  - DE_1987_23_6_a21
ER  -