MEASURE AND VIZUALIZATION IN THE NEAR ZONES OF TRANSIENT ULTRASONIC FIELDS GENERATED BY BROADBAND TRANSDUCERS IN LIQUID MEDIA E. RIERA-FRANCO DE SARABIA, A. RAMOS-FERNANDEZ et L . GOMEZ-ULLATEJ. Phys. Colloques, 51 C2 (1990) C2-603-C2-606DOI: https://doi.org/10.1051/jphyscol:19902142