Anharmonic effects in Mg2X (X = Si, Ge, Sn) compounds studied by Raman spectroscopy Y.S. Raptis, G.A. Kourouklis, E. Anastassakis, E. Haro-Poniatowski et M. Balkanski J. Phys. France, 48 2 (1987) 239-245 DOI: 10.1051/jphys:01987004802023900