@inproceedings{SIGMOD-1993-IshikawaKO,
	author        = "Yoshiharu Ishikawa and Hiroyuki Kitagawa and Nobuo Ohbo",
	booktitle     = "{Proceedings of the 23rd ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD93/P247.PDF",
	doi           = "10.1145/170035.170076",
	pages         = "247--256",
	publisher     = "{ACM Press}",
	title         = "{Evaluation of Signature Files as Set Access Facilities in OODBs}",
	year          = 1993,
}