1. A short history of midwifery;Cutter,1964
2. Semmelweis, his life and work;Gortvay,1968
3. Puerperal fever 1847–1861, from the first statement about the discovery to the publication of Semmelweis' Aetiologie;Györgyey,1968
4. Ignaz Semmelweis and the etiology of puerperal fever;Longo,1990