Mousa, M., A. Knápek, and L. Grmela. “Similarities and Differences Between Two Researches in Field Electron Emission: A Way to Develop a More Powerful Electron Source”. Jordan Journal of Physics 13, no. 2 (April 24, 2025). Accessed May 14, 2025. https://jjp.yu.edu.jo/index.php/jjp/article/view/713.