JENSEN, B. William R. Copeland: The Uneasy Alliance. Collaboration between the Finnish Opposition and the Russian Underground. 1899-1904. Suomalaisen Tiedeakatemian Toimituksia ser. B torn. 179. Helsinki, 1973. 224 s. FM 33. Historisk Tidsskrift, [S. l.], v. 13, 1978. Disponível em: https://tidsskrift.dk/historisktidsskrift/article/view/52024. Acesso em: 25 apr. 2024.