TY  - JOUR
AU  - A. F. Kleimenov
AU  - S. N. Shimanov
TI  - On the question of the existence and the construction of periodic solutions of systems with lag which are close to Ljapunov systems
JO  - Differencialʹnye uravneniâ
PY  - 1968
SP  - 1199
EP  - 1211
VL  - 4
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1968_4_7_a3/
LA  - ru
ID  - DE_1968_4_7_a3
ER  -