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Rybár, P.; Sasvári, T.; Hvizdák, L.; Hvizdáková, J.; Baláž, B. Geotouristic Excursion to Selected Historical Mining Sites Developed by Slovak and German Miners in the Gelnica-Smolník Region, Slovakia.
geotour No. 20, 23.
https://doi.org/10.7494/geotour.2010.20.23.