@article{SAT-2001-BuningZ,
	author        = "Hans Kleine Büning and Xishun Zhao",
	doi           = "10.1016/S1571-0653(04)00313-0",
	journal       = "{Electronic Notes in Discrete Mathematics}",
	pages         = "48--58",
	title         = "{Satisfiable Formulas Closed Under Replacement}",
	volume        = 9,
	year          = 2001,
}