@article{articleb6eae077,
title   = {Photoreflectance spectra from GaAs HEMT structures reinvestigated: solution of an old controversy},
author = {Soares, J A N T and Enderlein, R and Beliaev, D and Leite, J. R. and Saito, M},
year = {1998},
doi = {10.1088/0268-1242/13/12/015},
journal   = {Semiconductor Science and Technology}
}