Babczyńska-Sendek, B., Błońska, A. and Kołtuniak, A. (2013) “Excavations of the Twardowice Plateau (Silesian Upland) as refuges for xerothermic plant species”, Biodiversity: Research and Conservation, 28, pp. 29–36. doi: 10.2478/v10119-012-0027-0.