TY  - JOUR
AU  - Yu. I. Lyubich
AU  - V. A. Tkachenko
TI  - On a Floquet theory for equations with retarded argument
JO  - Differencialʹnye uravneniâ
PY  - 1969
SP  - 648
EP  - 656
VL  - 5
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1969_5_4_a4/
LA  - ru
ID  - DE_1969_5_4_a4
ER  -