Mohammed. K. A. AL- Janan, and R. Y. J. AL-Salih. “Design and Studying the Effect of Polepiece Shape on the Magnetic and Optical Properties of the Unipolar Lens”. Tikrit Journal of Pure Science 27, no. 6 (January 29, 2023): 63–69. Accessed May 16, 2024. https://tjps.tu.edu.iq/index.php/tjps/article/view/760.