Robert Heinrich Herman Koch - The Lancet Respiratory Medicine
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Robert Koch | German bacteriologist | Britannica
Jobst-Hermann Koch im Verlag Dohr
Herman Koch - Wikipedia
Portrait of Robert Heinrich Hermann Koch (1843 - 1910) German physician and microbiologist, Stock Photo, Picture And Rights Managed Image. Pic. VD9-3574714 | agefotostock
Autor Herman Koch: „Im wirklichen Leben halten die Menschen mehr aus“ - WELT