1
by Devreese, J. T., Kunz, A. B., Collins, T. C.
Published 1974
Springer US
Table of Contents: ... -- Excitations in Superfluid Helium -- Hydrodynamic Excitations in Anharmonic Crystals and in Ferromagnets...

2
Published 1981
Springer US
Table of Contents: ...-Trapped Excitations in Solid and Liquid Helium -- Author Index...