Merja-Liisa Hinkkanen, ‎David Kirby, The Baltic and North Seas. Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 50, n. 3, p. 454–455, 2001. DOI: 10.25627/20015037587. Disponível em: https://openjournals.osmikon.de/zfo/article/view/7587. Acesso em: 16 sep. 2026.