the European Agenda 21 for tourism ; report of the NGO-Workshop convened by the German Federal Agency for Nature Conservation at the International Academy for Nature Conservation, Isle of Vilm, 24th - 26th of March 2003
Engels, Barbara (Hrsg.) ; Workshop Sustainable Tourism Development and European Policies <2003, Putbus> ; Deutschland / Bundesamt für Naturschutz
Bonn, 2003
[Online Ressource]