Karim Benouaret Djamal Benslimane Allel HadjAli Mahmoud Barhamgi FuDoCS: A Web Service Composition System Based on Fuzzy Dominance for Preference Query Answering. 1430-1433 2011 4 PVLDB 12 http://www.vldb.org/pvldb/vol4/p1430-benouaret.pdf db/journals/pvldb/pvldb4.html#BenouaretBHB11