Ke Wang Yabo Xu Ada Wai-Chee Fu Raymond Chi-Wing Wong FF-Anonymity: When Quasi-identifiers Are Missing. 1136-1139 2009 ICDE http://dx.doi.org/10.1109/ICDE.2009.184 conf/icde/2009 db/conf/icde/icde2009.html#WangXFW09