1
2
منشور في: 1943
Superior document: The Swedes and the Swedish settlements in North America 1
3
منشور في: 1943
Superior document: The Swedes and the Swedish settlements in North America 2
4
منشور في: 1963
Superior document: Acta Regiae Societatis Humaniorum Litterarum Lundensis 63
5
منشور في: 1910
Superior document: Sveriges Geologiska Undersökning : Ser. C, Avhandlingar och uppsatser 220