Th. Thoroddsen: An Account of the Physical Geography of Iceland with special Reference to the Plant Life. The Botany of Iceland, edited by L. Kolderup Rosen vinge and Eug. Warming, Part I, Nr. 2 (S. 187—343). Published by the aid of the Carlsberg Fund. Copenhagen (J. Frimodt) & London (J. Wheldon & Co.) 1914.

H. Ostenfeld, C. (1916). Th. Thoroddsen: An Account of the Physical Geography of Iceland with special Reference to the Plant Life. The Botany of Iceland, edited by L. Kolderup Rosen vinge and Eug. Warming, Part I, Nr. 2 (S. 187—343). Published by the aid of the Carlsberg Fund. Copenhagen (J. Frimodt) & London (J. Wheldon & Co.) 1914. Geografisk Tidsskrift - Danish Journal of Geography, 23. Retrieved from https://tidsskrift.dk/geografisktidsskrift/article/view/46937