1. Application of therapeutic ultrasound in medicine;Arriso;Ultrason Sonochem,1994
2. Acoustic cavitation and bubble dynamics;Atchley,1988
3. Balamuth L: U S Patent #3,086,288, 1963.
4. Balamuth L: US Patent #3,526,219, 1970.
5. Balamuth L: US Patents #3,636,943 (1972), #3,794,040 (1974), #3,862,630 (1975).