Gastellóu, Erick, Crisoforo Morales, Godofredo García, Rafael García, Gustavo Alonso Hirata, Ana María Herrera, Reina Galeazzi, Enrique Rosendo, Tomas Díaz, Roman Romano, and Antonio Coyopol. “Structural and Optical Changes of Undoped GaN Layers Grown via Radio-Frequency Magnetron Sputtering Obtained from GaN Powders”. European Journal of Engineering and Technology Research 4, no. 2 (February 27, 2019): 59–63. Accessed June 18, 2025. https://www.ej-eng.org/index.php/ejeng/article/view/1164.