TY  - JOUR
AU  - I. I. Kobyakov
TI  - Conditions for negativity of the Green's function of a two-point boundary value problem with deviating argument
JO  - Differencialʹnye uravneniâ
PY  - 1972
SP  - 443
EP  - 452
VL  - 8
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1972_8_3_a5/
LA  - ru
ID  - DE_1972_8_3_a5
ER  -