Efimov, V.B.; Kolmakov, G.V.; Kuliev, A.S.; Mezhov-Deglin, L.P.
(Физика низких температур, 1998)
The results or an experimental study ot the evolution ot the shape ot nonlinear second-sound pulses in superfluid He-II are reported The pulses propagate in the bulk (3D geometry) and along a
cryoacoustic waveguide tilled ...