NOVEL TECHNIQUE OF ACOUSTIC DE HAAS-VAN ALPHEN EFFECT AND APPLICATION TO LaB6 T. Suzuki, T. Goto, Y. Ohe, T. Fujimura and S. Kunii J. Phys. Colloques, 49 C8 (1988) C8-799-C8-800 DOI: 10.1051/jphyscol:19888362