En-nadir, R., H. El Ghazi, A. Jorio, and I. Zorkani. “Ground-State Shallow-Donor Binding Energy in (In,Ga)N/GaN Double QWs Under Temperature, Size, and the Impurity Position Effects”. Journal of Modeling and Simulation of Materials, vol. 4, no. 1, Mar. 2021, pp. 1-6, doi:10.21467/jmsm.4.1.1-6.