Elasticity and polarization of GaxAl1-xN alloys subjected to uniaxial and biaxial compression Y. Duan, G. Tang, L. Qin and L. Shi Eur. Phys. J. B, 66 2 (2008) 211-215 Published online: 14 November 2008 DOI: 10.1140/epjb/e2008-00414-4