Akihiro Inokuchi Takashi Washio Hiroshi Motoda Kouhei Kumasawa Naohide Arai Basket Analysis for Graph Structured Data. 420-431 http://link.springer.de/link/service/series/0558/bibs/1574/15740420.htm 1999 conf/pakdd/1999 PAKDD db/conf/pakdd/pakdd99.html#InokuchiWMKA99