@inproceedings{STOC-1993-RaviMRRH,
	author        = "R. Ravi and Madhav V. Marathe and S. S. Ravi and Daniel J. Rosenkrantz and Harry B. Hunt III",
	booktitle     = "{Proceedings of the 25th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/167088.167209",
	isbn          = "0-89791-591-7",
	pages         = "438--447",
	publisher     = "{ACM}",
	title         = "{Many birds with one stone: multi-objective approximation algorithms}",
	year          = 1993,
}