1. Ökotourismus in malaysischen Nationalparks-Methodentriangulation in der sozialgeographischen Asienforschung;Backhaus;Asiat. Stud.,2001
2. Improving environmental decision-making through collaborative methods;Bauer;Policy Stud. Rev.,1999
3. Beierle , T. C. 2000 Public participation in environmental decisions: An evaluation framework using social goals Discuss. Pap. 99-06 Resour. of the Future Washington, D. C.
4. Beierle , T. C. J. Cayford 2002 Democracy in practice: Public participation in environmental decisions Resour. for the Future Washington, D. C.