Szmidt, Aleksander, and Wojciech Tołoczko. “Zelce Mountain As a Geotouristic Value of the Woźniki-Wieluń Upland, Including Geomorphological Analysis”. Acta Universitatis Lodziensis. Folia Geographica Physica, no. 18, Dec. 2019, pp. 53-65, doi:10.18778/1427-9711.18.04.