Fan, Jiameng, and Wenchao Li. “Adversarial Training and Provable Robustness: A Tale of Two Objectives”. Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 8 (May 18, 2021): 7367-7376. Accessed June 15, 2021. https://ojs.aaai.org/index.php/AAAI/article/view/16904.