Reference
Michael Wernli, Dominik Siegrist, Reto Rupf, Christophe Clivaz, Andreas Rinkel, Mathias Manz, Nathalie Stumm (2009): VISIMAN
Development of a Flexible Visitor Management Tool for National Parks and Regional Natural Parks – Nationalpark Hohe Tauern - Conference Volume – 4: 337 - 339.