TY  - JOUR
AU  - V. P. Kirlitsa
TI  - Invariance of a certain linear system with lag
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 955
EP  - 957
VL  - 9
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_5_a21/
LA  - ru
ID  - DE_1973_9_5_a21
ER  -