1. Peierls, R. On the kinetic theory of thermal conduction in crystals. Ann. Physik 3, 1055–1101 (1929).
2. Frenkel, J. Wave Mechanics: Elementary Theory, Oxford UP, Clarendon, 1932, p. 265) introduced the word ‘phonon’ to describe Tamm’s elastic or sound quanta (Tamm, I. G., Z. Phys.60, 345–363, 1930) associated with Debye’s ‘lattice waves’ (Planck, M., Debye, P. J. W., Nernst, W., Smoluchowski, M. v., Sommerfeld, A. & Lorentz, H. A., Vorträge über die kinetische Theorie der Materie und der Elektrizität, Teubner, Leipzig, 1914).
3. Casimir, H. B. G. Note on the conduction of heat in crystals. Physica V (no. 6), 495–500 (1938).
4. Klemens, P. G. The scattering of low-frequency lattice waves by static imperfections. Proc. Phys. Soc. A 68, 1113–1128 (1955); and Solid State Physics: Advances and Applications, ed. Seitz F. and Turnbull D. (Academic, New York, 1988, Vol. 7).
5. Ziman, J. M. Electrons and Phonons (Oxford, Clarendon, 1960), p. 220–223.