Rina Azoulay-Schwartz Sarit Kraus Assessing Usage Patterns to Improve Data Allocation via Auctions. 47-54 2000 conf/icmas/2000 ICMAS http://doi.ieeecomputersociety.org/10.1109/ICMAS.2000.858430 db/conf/icmas/icmas2000.html#Azoulay-SchwartzK00