Hunsberger, Luke, and Roberto Posenato. “Faster Dynamic-Consistency Checking for Conditional Simple Temporal Networks”. Proceedings of the International Conference on Automated Planning and Scheduling 30, no. 1 (June 1, 2020): 152-160. Accessed February 27, 2021. https://ojs.aaai.org/index.php/ICAPS/article/view/6656.