“Design of Electrostatic Unipotential Lens Accelerating And Decelerating Operated Under Finite And Infinite Magnification Conditions”. Ibn AL-Haitham Journal For Pure and Applied Sciences 26, no. 1 (April 30, 2017): 167–172. Accessed May 1, 2024. https://jih.uobaghdad.edu.iq/index.php/j/article/view/520.