TY  - JOUR
AU  - Grammatikopoulos, Myron K.
AU  - Ladas, G.
AU  - Sficas, Yiannis G.
TI  - Necessary and sufficient conditions for oscillation of delay equations with constant coefficients
JO  - Czechoslovak Mathematical Journal
PY  - 1987
SP  - 262
EP  - 270
VL  - 37
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1987.102153/
DO  - 10.21136/CMJ.1987.102153
LA  - en
ID  - 10_21136_CMJ_1987_102153
ER  -