Research expedition of Leo Frobenius (German Inner African Research Expedition): Vol. 1 Zur Zwischenablage hinzufügen BArch, R 1001/6628 Akt(e) Apr. 1913 - Sept. 1914, 1919 Teil vonFederal Archives (Archivtektonik) In: Research expedition of Leo Frobenius (German Inner African Research Expedition)
Research expedition of Leo Frobenius (German Inner African Research Expedition): Vol. 2 Zur Zwischenablage hinzufügen BArch, R 1001/6629 Akt(e) Sept. 1914 - Sept. 1919, 1938 Teil vonFederal Archives (Archivtektonik) In: Research expedition of Leo Frobenius (German Inner African Research Expedition)
