1. Angel James, J., Freundlich, H. F., Bullen, M. A., Wells, P. N. T., Williams, D. P. C.: The physical and biological properties of ultrasound and clinical experience. Acta oto-laryng., Suppl. 178, 134 (1963)
2. Arslan, M.: Treatment of Menière's syndrome by direct application of ultrasound waves to the vestibular system. Proc. Vth. Int. Congr. Otorhinolar. Amsterdam 1953
3. Brahe Pedersen, C., Sørensen, H.: Labyrinthectomy and ultrasonic irradiation in Menière's disease. Dan. Med. Bull. 18, 66 (1971)
4. McLay, K., Flinn, M., Ormerod, F. C.: Histological changes in the inner ear resulting from the application of ultrasonic energy. J. Laryng. 75, 345 (1961)
5. House, W. F.: Cryosurgery in Menière's disease. Arch. Otolaryng. 84, 616 (1966)