%0 Journal Article %A K. A. Sharifov %A A. S. Abbasov %T On the interaction between the width of the forbidden zone and Gibbs energy of non-metallic solids %J Doklady Akademii Nauk %D 1964 %P 430-432 %V 157 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_157_2_a45/ %G ru %F DAN_1964_157_2_a45