@book{26760,
	author = {Pickett, Steward T., and Kolasa, Jurek. and ebrary, Inc.},
	title = {Ecological understanding},
	publisher = {Elsevier/Academic Press,},
	year = {c2007.},
	address = {Amsterdam ;},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10225042}
}