THIRD-SOUND PULSES IN DOUBLY CONNECTED SYSTEMS H.J.Verbeek, H. Van Beelen, R. De Bruyn Ouboter and K.W. Taconis J. Phys. Colloques, 39 C6 (1978) C6-142-C6-143 DOI: 10.1051/jphyscol:1978663
