@article {174,
	title = {Effects of ammonia deposition on forests in the Netherlands},
	journal = {Atmospheric Environment},
	volume = {32(3)},
	year = {1998},
	pages = {525-532},
	author = {van der Eerden, L. and de Vries, W. and van Dobben, H.}
}
@article {812,
	title = {Effects of ammonia deposition on forests in the Netherlands},
	volume = {32},
	year = {1998},
	pages = {525-532},
	author = {Van der Eerden, L.J.M. and de Vries, W. and van Dobben, H.}
}
