@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}
}
@conference {DBLP:conf/vldb/ZhaoYY07,
	title = {{G}raph {I}ndexing: {T}ree + {D}elta $>$= {G}raph},
	booktitle = {VLDB},
	year = {2007},
	pages = {938-949},
	author = {Peixiang Zhao and Yu, Jeffrey Xu and Philip S. Yu}
}
@conference {DBLP:conf/dasfaa/ZhaoY07,
	title = {{M}ining {C}losed {F}requent {F}ree {T}rees in {G}raph {D}atabases},
	booktitle = {DASFAA},
	year = {2007},
	pages = {91-102},
	author = {Peixiang Zhao and Yu, Jeffrey Xu}
}
@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}
}
