Kyle, R. A.; Shampo, M. A. (1982). "Gerhard Domagk". JAMA: The Journal of the American Medical Association. 247 (18): 2581. doi:10.1001/jama.247.18.2581. PMID7040718.
Kyle, R. A.; Shampo, M. A. (1982). "Gerhard Domagk". JAMA: The Journal of the American Medical Association. 247 (18): 2581. doi:10.1001/jama.247.18.2581. PMID7040718.