@book{212812,
	author = {Stephani, Hans. and Stephani, Hans. and ebrary, Inc.},
	title = {Relativity},
	publisher = {Cambridge University Press,},
	year = {2004.},
	address = {Cambridge :},
	edition = {3rd ed.},
	note = {Rev. ed. of: General relativity. 2nd ed. 1990.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10124679}
}