![]() | Up a level |
Wiesmann, Urs Martin; Wallner, Astrid; Liechti, Karina; Aerni, Isabel; Schüpbach, Ursula; Ruppen, Beat (2005). Management Plan for the Jungfrau-Aletsch-Bietschhorn UNESCO World Heritage Site Naters, Switzerland: Jungfrau-Aletsch-Bietschhorn World Heritage Association