@inproceedings{DLT-1997-DavidES,
	author        = "N. Gnanamalar David and J. D. Emerald and K. G. Subramanian",
	booktitle     = "{Proceedings of the Third International Conference on Developments in Language Theory}",
	pages         = "411--427",
	publisher     = "{Aristotle University of Thessaloniki}",
	title         = "{Learning String Adjunct and Tree Adjunct Languages}",
	year          = 1997,
}