@inproceedings{DLT-1993-PaunRS,
	author        = "Gheorghe Paun and Grzegorz Rozenberg and Arto Salomaa",
	booktitle     = "{Proceedings of the First International Conference on Developments in Language Theory}",
	isbn          = "981-02-1645-9",
	pages         = "370--388",
	publisher     = "{World Scientific}",
	title         = "{Contextual Grammars: Erasing, Determinism, One-Side Contexts}",
	year          = 1993,
}