MYRDA, Grzegorz; PANECKI, Tomasz. The problem of using persistent identifiers for historical geographical objects. Studia Geohistorica, [S. l.], n. 8, p. 179–193, 2020. DOI: 10.12775/SG.2020.08. Disponível em: https://apcz.umk.pl/AZMDDP/article/view/SG.2020.08. Acesso em: 8 lip. 2025.