@article {3981,
	title = {Grammars++ for Modelling Information in Text},
	journal = {Information Systems},
	volume = {24},
	year = {1999},
	pages = {1--24},
	doi = {10.1016/S0306-4379(99)00002-2},
	author = {Airi Salminen and Frank Tompa}
}
