@article {888,
	title = {The fate of NH4NO3 added to Sphagnum magellanicum carpets at five European mire sites},
	journal = {Biogeochemistry},
	volume = {45},
	year = {1999},
	pages = {73-93},
	author = {Williams, B.L. and Buttler, A. and Grosvernier, P. and Francez, A.J. and Gilbert, D. and Ilomets, M. and Jauhiainen, J. and Matthey, Y. and Silcock, D.J.}
}
@article {629,
	title = {Potential NH4+ \& NO3- uptake in seven Sphagnum species},
	journal = {New Phytol},
	volume = {138},
	year = {1998},
	pages = {287-293},
	author = {Jauhiainen, J. and Wallen, B. and Malmer, N.}
}
