Tight-binding study of the structure of the electronic energy band of the quaternary solid solutions series CuIn1−xAlxTe2Jesús Jiménez Arias, Daniel Suescun Díaz and Diego A. Rasero CausilEur. Phys. J. B, 92 5 (2019) 112DOI: https://doi.org/10.1140/epjb/e2019-90677-9