@book{47616,
	author = {US-USSR Workshop on Planetary Sciences and Donahue, Thomas M. and ebrary, Inc.},
	title = {Planetary sciences},
	publisher = {National Academy Press,},
	year = {1991.},
	address = {Washington, D.C. :},
	note = {"S216"--T.p. verso.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10063018}
}