Nordenskiöld, Adolf Erik (1881). The voyage of the Vega round Asia and Europe. Volume 1 & 2. London: Macmillan and Co. – via Biodiversity Heritage Library & Internet Archive.
Bird, John; Goodrich, Cyrena; Weathers, Maura (1981). «Petrogenesis of Uivfaq Iron, Disko Island, Greenland». Journal of Geophysical Research86 (B12): 11787-11805. doi:10.1029/JB086iB12p11787.
doi.org
Nordenskiöld, Adolf Erik (1881). The voyage of the Vega round Asia and Europe. Volume 1 & 2. London: Macmillan and Co. – via Biodiversity Heritage Library & Internet Archive.