Salas-Torres, O., Zúñiga-Segundo, A., & Magaña-Solís, L. (2012). Non-stationary response of photorefractive crystal under an external sinusoidal electric field. Revista Mexicana De Física, 58(2), 160–165. Retrieved from https://rmf.smf.mx/ojs/index.php/rmf/article/view/3898