@inproceedings{STOC-1998-TherienW,
	author        = "Denis Thérien and Thomas Wilke",
	booktitle     = "{Proceedings of the 30th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/276698.276749",
	isbn          = "0-89791-962-9",
	pages         = "234--240",
	publisher     = "{ACM}",
	title         = "{Over Words, Two Variables Are as Powerful as One Quantifier Alternation}",
	year          = 1998,
}