@article{SAT-2001-Gelder,
	author        = "Allen Van Gelder",
	doi           = "10.1016/S1571-0653(04)00317-8",
	journal       = "{Electronic Notes in Discrete Mathematics}",
	pages         = "115--128",
	title         = "{Combining Preorder and Postorder Resolution in a Satisfiability Solver}",
	volume        = 9,
	year          = 2001,
}