1. The application of ultrasonic techniques in ophthalmology;Baum;Arch. Ophth.,1958
2. Ultrasonography in clinical ophthalmology;Baum;Tr. Am. Acad. Ophth. Otolaryng.,1964
3. Ultrasound in ophthalmological diagnosis;Purnell,1966
4. Intensity modulated (B-scan) ultrasonography;Purnell,1967
5. A hand-operated ultrasound scan system for ophthalmic evaluation;Coleman;Am. J. Ophth.,1969