TY  - JOUR
AU  - S. A. Markosyan
TI  - Qualitative investigation of a system of two differential equations by the method of two isoclines
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1959
SP  - 114
EP  - 128
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1959_1_a10/
LA  - ru
ID  - IVM_1959_1_a10
ER  -