The GW electronic structure of cubic RbMF3 perovskites (M = Be, Mg, Ca, Sr, Ba) Stepan V. Syrotyuk and Vira M. Shved Eur. Phys. J. B, 88 9 (2015) 229 Published online: 14 September 2015 DOI: 10.1140/epjb/e2015-60107-5