TY  - JOUR
AU  - Ya. I. Rivkind
TI  - A characteristic property of dynamical systems with a discrete spectrum
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 1203
EP  - 1207
VL  - 14
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_7_a6/
LA  - ru
ID  - DE_1978_14_7_a6
ER  -