Theoretical calculations on structural and electronic properties of BGaAsBi alloys Metin Aslan, Battal G. Yalcin, Mehmet Ustundag and Sadik Bagci Eur. Phys. J. B, 88 11 (2015) 312 Published online: 26 November 2015 DOI: 10.1140/epjb/e2015-60279-x