%0 Journal Article %J Science of the Total Environment %D 2018 %T Effects of airborne ammonium and nitrate pollution strongly differ in peat bogs, but symbiotic nitrogen fixation remains unaffected %A Eva van den Elzen %A Leon J.L. van den Berg %A Bas van der Weijden %A Christian Fritz %A Lucy J. Sheppard %A Leon P.M. Lamers %B Science of the Total Environment %V 610–611 %P 732–740 %G eng %R 10.1016/j.scitotenv.2017.08.102