Dean, K J (August 1984). "Waves and Fields in Optoelectronics: Prentice-Hall Series in Solid State Physical Electronics". Physics Bulletin. 35 (8): 339. doi:10.1088/0031-9112/35/8/023.
Feneberg, Martin; Leute, Robert A. R.; Neuschl, Benjamin; Thonke, Klaus; Bickermann, Matthias (16 August 2010). "High-excitation and high-resolution photoluminescence spectra of bulk AlN". Physical Review B. 82 (7) 075208. Bibcode:2010PhRvB..82g5208F. doi:10.1103/PhysRevB.82.075208.