%0 Journal Article %J Physical Review %D 1968 %T Electroreflectance Measurements on Mg2Si, Mg2Ge, and Mg2Sn %A Vazquez, F. %A Forman, Richard %A Cardona, Manuel %B Physical Review %V 176 %P 905 - 908 %8 Jan-12-1968 %G eng %U http://link.aps.org/doi/10.1103/PhysRev.176.905 %N 3 %! Phys. Rev. %R 10.1103/PhysRev.176.905