@article{Kimic_2021,
title={Creating Tourism Destinations of Underground Built Heritage—The Cases of Salt Mines in Poland,
Portugal,
and Romania},
volume={13},
ISSN={2071-1050},
url={http://dx.doi.org/10.3390/su13179676},
DOI={10.3390/su13179676},
number={17},
journal={Sustainability},
publisher={MDPI AG},
author={Kimic,
Kinga and Smaniotto Costa,
Carlos and Negulescu,
Mihaela},
year={2021},
month=aug,
pages={9676} }