@book{231892,
	author = {Dobre�t�sov, Nikola�i Leont�evich. and ebrary, Inc.},
	title = {Biosphere origin and evolution},
	publisher = {Springer,},
	year = {2008.},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10217663}
}