Hagen, Dagmar, Odd I. Vistad, Nina E. Eide, Anne C. Flyen, and Kirstin Fangel. “Perspective: Managing Visitor Sites in Svalbard: From a Precautionary Approach towards Knowledge-Based Management”. Polar Research 310 (May 4, 2012). Accessed August 12, 2020. https://polarresearch.net/index.php/polar/article/view/2616.