Fowler, D.Coyle, M.Skiba, U.Sutton, M.A.Cape, J.N.Reis, S.Sheppard, L.J.Jenkins, A.Grizetti, B.Galloway, J.N.Vitousek, P.Leach, A.Bouwman, A.F.Butterbach-Bahl, KlausDentener, F.Stevenson, D.Amann, MarkusVoss, M.l.2014-02-022014-02-02https://hdl.handle.net/10568/34481The global nitrogen cycle in the twenty-first century