Abdelkader, H. I., M. Abdelkader, M. Kabeel, and malak alya. “Visual Evoked Potential Signal Processing and Analysis for Normal and Galucomic Eyes”. JOURNAL OF ADVANCES IN PHYSICS, vol. 8, no. 2, Apr. 2015, pp. 2106-21, doi:10.24297/jap.v8i2.1516.