Blevins, Steve M.; Bronze, Michael S. (2010). „Robert Koch and the 'golden age' of bacteriology”. International Journal of Infectious Diseases. 14 (9): e744—751. PMID20413340. doi:10.1016/j.ijid.2009.12.003.
Blevins, Steve M.; Bronze, Michael S. (2010). „Robert Koch and the 'golden age' of bacteriology”. International Journal of Infectious Diseases. 14 (9): e744—751. PMID20413340. doi:10.1016/j.ijid.2009.12.003.