WYBRANOWSKI, Dariusz. Natural conditions as an one factor belonging to war campaigns in Thietmar’s and Gallus Anonymous’s narration. Appendix to first Piast’s policy. In: GRABARCZYK, Tadeusz; POGOŃSKA-POL, Magdalena (eds.). Armia kontra natura. Faces of warPoland: Lodz University Press,2020. v. 2p. 81–120. DOI: 10.18778/8220-057-7.05. Disponível em: https://press.uni.lodz.pl/index.php/wul/catalog/book/250/chapter/616. Acesso em: 15 feb. 2026.