1. Das trinkende Kind in Uterus;De Snoo;Monatschr. f. Geburtsh. u. Gynäk.,1937
2. Fetal Swallowing, Gastrointestinal Activity and Defecation in Amino;Becker;Surg., Gynec. & Obst.,1940
3. Röntgenkymographie des Saugvorganges;Hofmann;Klin. Wchnschr.,1935
4. Larynx From an Infant Which Had Been the Subject of a Peculiar Form of Obstructed Inspiration;Lees;Tr. Path. Soc. London,1883