Boeser, Pieter A. A.
born 26. July 1858; died 25. February 1935Brief von Pieter A. A. Boeser an Adolf Erman
Leiden, 18.12.1898Brief von Pieter A. A. Boeser an Adolf Erman
Leiden, 10.05.1899Brief von Pieter A. A. Boeser an Adolf Erman
Leiden, 22.12.1899Heymans, Gerardus
born 17. April 1857 in Ferwerderadeel; died 18. February 1930 in GroningenBrief von Gerardus Heymans an Hans Vaihinger, 24.05.1920 [24.05.1920]
Groningen, 24.05.1920 [24.05.1920]Stromer von Reichenbach, Ernst
born 12. June 1871 in Nürnberg; died 18. December 1952 in Erlangen
Die Geologie der deutschen Schutzgebiete in Afrika
München : Oldenbourg, 1896Thierry, Gerard Jacobus
born 25. August 1880; died 16. January 1962Brief von Gerard Jacobus Thierry an Adolf Erman
Leiden, 01.05.1919