TY  - JOUR
AU  - V. A. Deyft
TI  - Conditions of disconjugacy for a linear homogeneous differential equation with retarded argument
JO  - Differencialʹnye uravneniâ
PY  - 1974
SP  - 1957
EP  - 1963
VL  - 10
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_11_a5/
LA  - ru
ID  - DE_1974_10_11_a5
ER  -