GOCHNA, Michał. European Social Science History Conference (2020) – online (Lejda, Niderlandy), 24–27 marca 2021 r. Studia Geohistorica, [S. l.], n. 9, p. 241–244, 2022. Disponível em: https://apcz.umk.pl/AZMDDP/article/view/37187. Acesso em: 8 lip. 2025.