Rhonda Chaytor Patricia A. Evans Todd Wareham Fixed-Parameter Tractability of Anonymizing Data by Suppressing Entries. 23-31 2008 COCOA http://dx.doi.org/10.1007/978-3-540-85097-7_3 conf/cocoa/2008 db/conf/cocoa/cocoa2008.html#ChaytorEW08