indicators (indicators and sub-indicators) that effect on the development of geoheritage
(Petnička cave, gorge of the river Gradac and Trešnjica, and Taor springs) and their
placement on the tourism market. By applying the GAM model, it has been proven that
geoheritage in this part of Serbia represents a very significant tourism potential, which must
not be neglected, and even more underestimated. The results of the research showed that …