@article {1672,
	title = {Whole ecosystem N manipulation: An updated review},
	number = {331},
	year = {2002},
	institution = {JNCC},
	author = {Cunha, A. and Power, S.A. and Ashmore, M.R. and Green, P.R.S. and Haworth, B.J. and Bobbink, R.}
}
