Biodiversity and tourism in the framework of the convention on biological diversity / ed.: Jens Brüggemann ... Bonn : BfN, Federal Agency for Nature Conservation, 2002 -
  •  PDF The case of the Tayrona National Park, Colombia ; report of the workshop at Cañaveral, Tayrona National Park, 25 - 30 November 2001
  •  PDF The case of the natural and cultural heritage of Banska Stiavnica, Slovak Republic