Oketch, F., and H. Oyoko. “A Theoretical Study of Variation of Photoionization Cross Section of Donor Impurities in a GaAs Quantum Dot of Cylindrical Geometry With Incident Photon Frequency, Donor Location Along the Dot Axis and Applied Uniaxial Stress”. Revista Mexicana De Física, vol. 66, no. 1 Jan-Feb, Dec. 2019, pp. 35-41, doi:10.31349/RevMexFis.66.35.