@ARTICLE{
author={Jovanovic Radmila,Cesar Sanchez Dario,Pavlovic Sanja B,Devedzic Mirjana},
year={2018},
title={Principles of sustainability in rural tourism clusters: cases of the Upper and Lower Danube in Serbia},
journal={REVISTA DE GEOGRAFIA NORTE GRANDE},
volume={},
number={70},
pages={211-233},
document_type={Article},
}