ULTRASONIC SURFACE WAVE ATTENUATION BY INDUCED SUPERCONDUCTIVITY IN PbCu AND PbAg "SANDWICHES" J. G. Park, P. Tai et S. FreakeJ. Phys. Colloques, 39 C6 (1978) C6-681-C6-682DOI: https://doi.org/10.1051/jphyscol:19786304