Díaz Albarrán, S., and P. Rodríguez Peralta. “Unstable States of In$_{x}$Al$_{y}$Ga$_{1 - X -y}$N Quaternary Alloys”. Revista Mexicana De Física, vol. 56, no. 2, Jan. 2010, pp. 132-0, https://rmf.smf.mx/ojs/index.php/rmf/article/view/3739.