TY  - JOUR
AU  - N. Z. Gabbasov
AU  - E. S. Chichkin
TI  - The estimation of the domains of nonnegativity of the Cauchy function and its derivatives up to order $n-1$ for an $n$th order ordinary linear differential equation
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 1308
EP  - 1310
VL  - 6
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_7_a19/
LA  - ru
ID  - DE_1970_6_7_a19
ER  -