@article {1347, title = {Even low to medium nitrogen deposition impacts vegetation of dry, coastal dunes around the Baltic Sea}, journal = {Environmental Pollution}, volume = {157}, year = {2009}, pages = {792-800}, author = {Remke, E. and Brouwer, E. and Kooijman, A.M. and Blindow, I. and Esselink, H. and Roelefs, J.G.M.} } @article {1346, title = {Low atmospheric nitrogen loads lead to grass encroachment in coastal dunes, but only on acid soils}, journal = {Ecosystems}, volume = {12}, year = {2009}, pages = {1173{\textendash}1188}, author = {Remke, E. and Brouwer, E. and Kooijman, A. and Blindow, A. and Roelofs, J.G.M.} }