Romanescu, Gheorghe, and Ionut C. Nicu. “Evolution of Human Settlements and Natural Risk Factors. A Case Study of Chalcolithic Archaeological Sites in the Valea Oii Watershed (Romania)”. Archaeologia Polona 53 (January 1, 2015): 608–611. Accessed January 22, 2025. https://journals.iaepan.pl/apolona/article/view/414.