1. Geburtenrückgang und Gehurtenregelung;Grotjahn,1914
2. Contraceptive Methods Requiring Medical Assistance, Lecture at Sexual Reform Congress of World League for Sexual Reform, London, 1929; The Physical and Psychological Aspects of Contraception;Lehfeldt,1931
3. Die Empfängnisverhuetung;Fraenkel,1932
4. Discussion of Mechanical Occlusive Methods;Pust,1931