Yazici, D., Huang, K., White, B.D., Jeon, I., Burnett, V.W., Friedman, A.J., Lum, I.K., Nallaiyan, M., Spagna, S. and Maple, M.B. (2013) Superconductivity induced by electron doping in La1−xMxOBiS2 (M= Ti, Zr, Hf, Th). Physical Review B, 87, Article ID: 174512.