Elastic properties of type-I clathrate K8Zn4Sn42 determined by inelastic X-ray scatteringBogdan M. Leu, Mihai I. Sturza, Jiawang Hong, Ahmet Alatas, Volodymyr Baran and Thomas F. FässlerEPL, 113 1 (2016) 16001DOI: https://doi.org/10.1209/0295-5075/113/16001