@inbook {Ohala1983,
	title = {The origin of sound patterns in vocal tract constraints},
	booktitle = {The production of speech},
	year = {1983},
	pages = {189{\textendash}216},
	publisher = {Springer},
	organization = {Springer},
	address = {New York},
	author = {Ohala, John J.},
	editor = {MacNeilage, Peter}
}
