Quang, D. N., N. H. Tung, N. T. Hong, and T. T. Hai. “Mobility Enhancement in Square Quantum Wells: Symmetric Modulation of the Envelop Wave Function”. Communications in Physics, vol. 20, no. 3, Aug. 2010, p. 193, doi:10.15625/0868-3166/20/3/2212.