@book{14061,
	author = {NATO ASI on the Physical of Star Formation and Early Evoluion-II and Kylafis, Nikolaos D., ed.},
	title = {The origin of stars and planetary systems},
	publisher = {Kluwer Academic},
	year = {1999},
	series = {NATO science series, series C: mathematical and physical sci},
	address = {Dordrecht}
}