NEW PHENOMENA RELATED TO PROPAGATION OF WAVE PROCESSES IN He–II FLOW B. N. Eselson, N. E. Dyumin, V. G. Ivantsov et R. I. ShcherbachenkoJ. Phys. Colloques, 39 C6 (1978) C6-224-C6-225DOI: https://doi.org/10.1051/jphyscol:1978699