Chychura, Ig. Iv., I. I. Turianytsia, and Iv. Iv. Chychura. 2020. “Temperature Dependence of the Optical Absorption Edge of Doped Gallium Arsenide”. Physics and Chemistry of Solid State 21 (2):288-93. https://doi.org/10.15330/pcss.21.2.288-293.