@book{69366,
	author = {Meer, H. G. Van der. and Ennik, G. C.},
	title = {Nitrogen fluxes in intensive grassland systems},
	publisher = {Martinus Nijhoff,},
	year = {1986},
	series = {Developments in plant and soil sciences},
	address = {Dordrecht :},
	note = {34-20}
}