TY  - JOUR
AU  - Yan, Jurang
TI  - Oscillation results for difference equations with delays
JO  - Portugaliae mathematica
PY  - 1993
SP  - 129
EP  - 138
VL  - 50
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1993__50_2_115814/
LA  - en
ID  - PORMA_1993__50_2_115814
ER  -