title: The Fate of 15N-Nitrate in Healthy and Declining Phragmites australis Stands
authors.affiliation: Netherlands Institute of Ecology, Center for Terrestrial Ecology, Plant-Microorganism Interactions,P.O. Box 40, 6666 ZG Heteren, The Netherlands
authors.initials: JW
authors.lastname: Nijburg
authors.initials: HJ
authors.lastname: Laanbroek