Ware, Stephen G., Lasantha Senanayake, and Rachelyn Farrell. “Causal Necessity As a Narrative Planning Step Cost Function”. Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment 19, no. 1 (October 6, 2023): 155-164. Accessed May 11, 2024. https://ojs.aaai.org/index.php/AIIDE/article/view/27511.