@inbook {Weinreich1968,
	title = {Empirical Foundation for a Theory of Language Change},
	booktitle = {Directions for historical linguistics: A symposium},
	year = {1968},
	pages = {95{\textendash}188},
	publisher = {Univ. of Texas Press},
	organization = {Univ. of Texas Press},
	address = {Austin, {TX}},
	keywords = {Historical linguistics, language change, езикова промяна, историческа лингвистика},
	author = {Weinreich, Uriel and Labov, William and Herzog, Marvin I.},
	editor = {Lehmann, W. P. and Malkeil, Yakov}
}
