@article {DBLP:journals/www/ZhaoY08,
	title = {{F}ast {F}requent {F}ree {T}ree {M}ining in {G}raph {D}atabases},
	journal = {World Wide Web},
	volume = {11},
	number = {1},
	year = {2008},
	pages = {71-92},
	author = {Peixiang Zhao and Yu, Jeffrey Xu}
}
