1. Mein Lieblingselement: Quecksilber;Nachrichten aus der Chemie;2019-10
2. Index;Eponyms and Names in Obstetrics and Gynaecology;2019-01-31
3. Bibliography;Eponyms and Names in Obstetrics and Gynaecology;2019-01-31
4. Zavanelli, William Angelo (b. 1926);Eponyms and Names in Obstetrics and Gynaecology;2019-01-31
5. Youssef, Abdel Fattah (1924–2001);Eponyms and Names in Obstetrics and Gynaecology;2019-01-31