Hee-Kap Ahn Prosenjit Bose Jurek Czyzowicz Nicolas Hanusse Evangelos Kranakis Pat Morin Flipping your Lid. 2000 CCCG http://www.cs.unb.ca/conf/cccg/eProceedings/38.ps.gz db/conf/cccg/cccg2000.html#AhnBCHKM00