@book{36772,
	author = {Kangas, Annika. and Maltamo, Matti. and SpringerLink (Online service)},
	title = {Forest Inventory},
	publisher = {Springer Netherlands,},
	year = {2006.},
	series = {Managing Forest Ecosystems,},
	address = {Dordrecht :},
	url = {http://dx.doi.org/10.1007/1-4020-4381-3}
}