@conference {DBLP:conf/icdm/ZhaoY06,
	title = {{F}ast {F}requent {F}ree {T}ree {M}ining in {G}raph {D}atabases},
	booktitle = {ICDM Workshops},
	year = {2006},
	pages = {315-319},
	author = {Peixiang Zhao and Yu, Jeffrey Xu}
}
