The Economic Benefits of the Environment Natura 2000 Network
Brink, P. ten et al. 2013: The Economic benefits of the Natura 2000 Network. Synthesis Report. Institute for European Environmental Policy (IEEP), GHK, Ecologic Institut, Metroeconomica, EFTEC, Luxembourg. ISBN: 978-92-79-27588-3. The publication is available in English, French, German, Italian, Polish, and Spanish.