Drutarovský, Miloš, Martin Šimka, Viktor Fischer, and Frédéric Celle. “A Simple PLL-Based True Random Number Generator for Embedded Digital Systems”. Computing and Informatics 23, no. 5-6 (February 20, 2012): 501–515. Accessed November 8, 2024. http://147.213.75.17/ojs/index.php/cai/article/view/442.