@inproceedings{Maturity2014,
	author = "Vadim Zaytsev",
	title = "{Grammar Maturity Model}",
	booktitle = "{Pre-proceedings of the Ninth Workshop on Models and Evolution (ME 2014)}",
	year = 2014,
	editor = "Alfonso Pierantonio and Dalila Tamzalit and Bernhard Sch{\"a}tz",
	pages = "42--51",
	month = aug,
	url = "http://www.models-and-evolution.com/images/proceedings.pdf",
}