Li, B., L. Wang, G. B. Giannakis, and Z. Zhao. “Enhancing Parameter-Free Frank Wolfe With an Extra Subproblem”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 9, May 2021, pp. 8324-31, https://ojs.aaai.org/index.php/AAAI/article/view/17012.