Berghaus, Heinrich Karl Wilhelm (1797–1884) Justus Perthes (Gotha)
Gerland, Georg (1833–1919) Berghaus, Hermann (1828–1890) Justus Perthes (Gotha)
Berghaus, Hermann (1828–1890) Gerland, Georg Karl Cornelius (1833–1919) Justus Perthes (Gotha)
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