db/conf/cikm/Zaki98.html Mohammed Javeed Zaki Efficient Enumeration of Frequent Sequences. 68-75 CIKM1998/P068.pdf 1998 conf/cikm/98 CIKM http://doi.acm.org/10.1145/288627.288643 db/conf/cikm/cikm98.html#Zaki98