Duszyński, F., Migoń, P. and Strzelecki, M.C. 2015. The origin of sandstone boulder aprons along the escarpments of the Stołowe Mountains: are they all rockfall-derived? A new insight into an old problem using the CONEFALL 1.0 software. Bulletin of Geography. Physical Geography Series. 8 (Jul. 2015), 19–32. DOI:https://doi.org/10.2478/7208.