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"Fram" Expedition 1898-1902
6
Geographische Gesellschaft in Bremen
6
Norske videnskaps-akademi i Oslo
6
Verein für die Deutsche Nordpolarfahrt in Bremen
6
Deutsche Nordpolar-Expedition 1869-1870
4
Koldewey, Karl
4
Koldewey, Karl, 1837-1908
4
Drygalski, Erich von, 1865-1949
3
Greely, A. W. (Adolphus Washington), 1844-1935
3
Fleming, J. A. 1877-1956
2
Franklin, John, 1786-1847
2
Gesellschaft für Erdkunde zu Berlin
2
M'Clintock, Francis Leopold, Sir, 1819-1907
2
Murray, George, 1831-
2
Nordenskiöld, A. E. (Adolf Erik), 1832-1901
2
Royal Geographical Society (Great Britain)
2
Schumann, Richard, 1864-
2
Stade, Hermann, 1867-
2
United States. Naval Oceanographic Office
2
VanHöffen, Ernst, 1858-
2
Vega-expedition 1878-1880
2
Ziegler Polar Expedition 1903-1905
2
"Fram" Expedition 1893-1896
1
Deutsche Südpolar-Expedition 1901-1903
1
Mecking, Ludwig
1
Meinardus, Wilhelm, 1867-
1
Nansen, Fridtjof, 1861-1930
1
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Geophysics
Natural history
25
Arctic regions
24
Scientific Expeditions
22
Discovery and exploration
15
Observations
11
Fram (Ship)
7
Geomagnetism
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1837-1908
6
1869-1870
6
Deutsche Nordpolar-Expedition
6
German
6
Greenland
6
Karl
6
Koldewey
6
Antarctica
5
Meteorology
5
1786-1847
4
1869-1870)
4
British
4
Franklin
4
Geodesy
4
Geology
4
Germania (Schooner)
4
Hansa (Schooner)
4
Hydrography
4
John
4
Shipwreck survival
4
Technical reports
4
(1881-1884)
3
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