@inproceedings{SIGMOD-1993-Velez,
	author        = "Fernando Vélez",
	booktitle     = "{Proceedings of the 23rd ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD93/P440.PDF",
	doi           = "10.1145/170035.170127",
	pages         = "440",
	publisher     = "{ACM Press}",
	title         = "{Modularity and Tuning Mechanisms in the O2 System}",
	year          = 1993,
}