1. Der Ultraschall;Bergmann,1954
2. Ultrasonography in Ophthalmology;Vanysek,1969
3. A new supersonsonic applicator head of ophthalmic use;Yamamoto;J Clinic Ophthal,1963
4. Pupil response after ultrasonic irradiation;Greguss,1971
5. New methods in ophthalmological ultrasound therapy;Bertenyi;Orvosi Hetilap,1966