Abdelghani Bellaachia Ghita Amor-Tijani Enhanced Query Expansion in English-Arabic CLIR. 61-66 2008 DEXA Workshops http://doi.ieeecomputersociety.org/10.1109/DEXA.2008.52 conf/dexaw/2008 db/conf/dexaw/dexaw2008.html#BellaachiaA08