@inproceedings{SIGMOD-2003-QunLO,
	author        = "Chen Qun and Andrew Lim and Kian Win Ong",
	booktitle     = "{Proceedings of the 31st ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/872757.872776",
	isbn          = "1-58113-634-X",
	pages         = "134--144",
	publisher     = "{ACM}",
	title         = "{D(k)-Index: An Adaptive Structural Summary for Graph-Structured Data}",
	year          = 2003,
}