Christen, R., Eriksson, S., Pommerening, F. and Helmert, M. 2022. Detecting Unsolvability Based on Separating Functions. Proceedings of the International Conference on Automated Planning and Scheduling. 32, 1 (Jun. 2022), 44-52. DOI:https://doi.org/10.1609/icaps.v32i1.19784.