1. A critique of time-amplitude ultrasonography;Baum;Archives of Ophthalmology,1961
2. An evaluation of the time-amplitude sonography in ocular diagnosis;Purnell;American Journal of Ophthalmology,1962
3. Experimental studies of the behaviour of ultrasound in the sclera and cornea;Oksala,1969
4. Ultrasound as a Diagnostic and Surgical Tool;Gordon,1964
5. Transducer design for ultrasonic ophthalmology;Gordon,1969