@inproceedings{STOC-1997-BermanC,
	author        = "Piotr Berman and Chris Coulston",
	booktitle     = "{Proceedings of the 29th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/258533.258618",
	isbn          = "0-89791-888-6",
	pages         = "344--353",
	publisher     = "{ACM}",
	title         = "{On-Line Algorithms for Steiner Tree Problems}",
	year          = 1997,
}