Biodiversity and tourism in the framework of the convention on biological diversity the case of the natural and cultural heritage of Banska Stiavnica, Slovak Republic ; case study for the implementation of the "Draft international guidelines for activities related to sustainable tourism development in vulnerable terrestrial, marine and coastal ecosystems and habitats of major importance for biological diversity and protected areas, including fragile riparian and mountain ecosystems", tested in the framework of the project: Promoting sustainable tourism in central and eastern Europe: a demonstration model applied to the natural and cultural heritage of Banska Stiavnica (Slovakia) - Garbe, Christine