@book{10469,
	author = {NATO Advanced Study Institute on the Physics of Star Formation and Early Stellar Evolution and Lada, Charles J., ed. and NATO Advanced Study Institute},
	title = {The physics of star formation and early stellar evolution},
	publisher = {Kluwer Academic},
	year = {1991},
	series = {NATO ASI series, Series C : mathematical and physical scienc},
	address = {Dordrecht}
}