TY  - JOUR
AU  - A. F. Andreev
AU  - I. V. Pehenko
TI  - A system with one zero root of the characteristic equation
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 944
EP  - 946
VL  - 13
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_5_a16/
LA  - ru
ID  - DE_1977_13_5_a16
ER  -