Mohamed A. Soliman Ihab F. Ilyas Nick Koudas Finding Skyline and Top-k Bargaining Solutions. 1263-1267 2007 conf/icde/2007 ICDE http://doi.ieeecomputersociety.org/10.1109/ICDE.2007.368989 db/conf/icde/icde2007.html#SolimanIK07