@misc{MewesWaetzoldApeldoornetal., author = {Mewes, Melanie and W{\"a}tzold, Frank and Apeldoorn, Rob van and Varjopuro, Riku and Chmielewski, Tadeusz Jan and Veeneklaas, Frank and Kosola, Marja-Leena}, title = {Cost-effectiveness of managing Natura 2000 sites: An exploratory study for Finland, Germany, the Netherlands and Poland}, doi = {10.1007/s10531-010-9825-x}, language = {en} }