Gao, Jie, Hankz Hankui Zhuo, Subbarao Kambhampati, and Lei Li. 2015. “Acquiring Planning Knowledge via Crowdsourcing”. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing 3 (1):6-7. https://doi.org/10.1609/hcomp.v3i1.13262.