@article{LDTA-2001-LammelR,
	author        = "Ralf Lämmel and Günter Riedewald",
	doi           = "10.1016/S1571-0661(04)80924-1",
	journal       = "{Electronic Notes in Theoretical Computer Science}",
	number        = 2,
	pages         = "132--156",
	title         = "{Prological Language Processing}",
	volume        = 44,
	year          = 2001,
}