@inproceedings{SIGMOD-1991-ChengH,
	author        = "Jia-bing R. Cheng and Ali R. Hurson",
	booktitle     = "{Proceedings of the 21st ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD91/P022.PDF",
	doi           = "10.1145/115790.115793",
	pages         = "22--31",
	title         = "{Effective Clustering of Complex Objects in Object-Oriented Databases}",
	year          = 1991,
}