ORRMAN, E. Finlands fornborgar i ny belysning: Jussi-Pekka Taavitsainen, Ancient Hillforts of Finland. Problems of Analysis, Chronology and Interpretation with Special Reference to the Hillfort of Kuhmoinen. Historisk Tidskrift för Finland, [S. l.], v. 76, n. 2, 1991. Disponível em: https://journal.fi/htf/article/view/65691. Acesso em: 3 maj. 2024.