Arctica & Antarctica
Arctica & Antarctica
(DMI - DANISH METEOROLOGICAL INSTITUTE).
Isforholdene i de Arktiske Hav..København & Hørsholm, 1932-54.
USSING, N.V. - THE GEOLOGICAL EXPEDITION TO JULIANEHAAB DISTRICT 1900.
Geology of the Country around ..Copenhagen, Reitzel, 1912.