@inproceedings{STOC-1998-Gal,
	author        = "Anna Gál",
	booktitle     = "{Proceedings of the 30th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/276698.276855",
	isbn          = "0-89791-962-9",
	pages         = "429--437",
	publisher     = "{ACM}",
	title         = "{A Characterization of Span Program Size and Improved Lower Bounds for Monotone Span Programs}",
	year          = 1998,
}