TY  - JOUR
AU  - M. M. Khapaev
AU  - I. V. Kuznetsova
TI  - Multifrequency systems that have lag
JO  - Differencialʹnye uravneniâ
PY  - 1982
SP  - 354
EP  - 356
VL  - 18
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1982_18_2_a24/
LA  - ru
ID  - DE_1982_18_2_a24
ER  -