Reference
Johannes Rüdisser, Martin Schönhart, Erwin Schmid, Franz Sinabell, Ulrike Tappeiner, Erich Tasser (2011): Land use and biodiversity: an indicator set supporting sustainable development – IGF-Forschungsberichte (Instituts für Interdisziplinäre Gebirgsforschung [IGF]) (Institute of Mountain Research) – 4: 183 - 192.