M. . Aboud Hashem, “Static Characteristics of n+-n-p-p+ Silicon IMPATT Diode”, J. eng. sustain. dev., vol. 13, no. 2, pp. 144–161, Jun. 2009, Accessed: Apr. 26, 2025. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1547