@book{48910,
	author = {Scholz, Sebastian M.,},
	title = {Biochar systems for smallholders in developing countries :},
	publisher = {The World Bank,},
	year = {2014.},
	series = {World Bank Study},
	address = {Washington, District of Columbia :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10886441}
}