Inelastic scattering technique – Brillouin
T. Blachowicz, M. H. Grimsditch
Encyclopedia of Condensed Matter Physics, G. Bassani, G. Liedl, P. Wyder, Eds., ISBN 0-12-227610-8, Elsevier Ltd, UK, 199-205, 2005, https://doi.org/10.1016/B978-0-12-803581-8.01219-4