@inproceedings{drexler-et-al-kr2023,
  author       = {Dominik Drexler and Jendrik Seipp and Hector Geffner},
  title        = {Learning Hierarchical Policies by Iteratively Reducing the Width of
    Sketch Rules},
  booktitle    = {Proceedings of the Twentieth International Conference on Principles of
    Knowledge Representation and Reasoning (KR 2023)},
  year         = 2023,
}