1. The mechanics of swallowing;Ardran,1951
2. The epipharynx;Cave;Journal of Laryngology,1961
3. Eating and drinking;Critchlow;Radiography,1954
4. The radiological significance of visualisation of the cricopharyngeus;Critchlow;Indian Journal of Radiology,1956
5. Die Venosen Wundernetze des hypopharynx;Elze;Zeitschrift für Ohren,1918