Furmanek, M. and Wroniecki, P. 2017. Erased by the Plough, Spotted from the Air. Remains of Earthwork Sites from Silesia. Ana­lecta Archa­eolo­gica Res­so­viensia. 12, (Dec. 2017), 199–220. DOI:https://doi.org/10.15584/anarres.2017.12.12.