SIKORA, J.; KITTEL, P.; WRONIECKI, P. To not see the forest for the trees. A non-invasive approach to the Góra Chełmo medieval hillfort. Archaeologia Polona, [S. l.], v. 53, p. 506–509, 2015. Disponível em: https://journals.iaepan.pl/apolona/article/view/387. Acesso em: 28 apr. 2024.