Endre Boros Vladimir Gurvich Leonid Khachiyan Kazuhisa Makino On the Complexity of Generating Maximal Frequent and Minimal Infrequent Sets. 133-141 2002 conf/stacs/2002 STACS http://link.springer.de/link/service/series/0558/bibs/2285/22850133.htm db/conf/stacs/stacs2002.html#BorosGKM02