TY  - JOUR
AU  - V. Sh. Burd
AU  - Yu. S. Kolesov
AU  - M. A. Krasnosel'skii
TI  - On the existence and constancy of sign of Green's function of scalar equations of high order with almost periodic coefficients
JO  - Izvestiya. Mathematics 
PY  - 1969
SP  - 1319
EP  - 1334
VL  - 3
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1969_3_6_a9/
LA  - en
ID  - IM2_1969_3_6_a9
ER  -