@article{featuresprojectionsandrepresentation,
  title = {Features, Projections, and Representation Change for Generalized Planning},
  author = {Blai Bonet and Hector Geffner},
  year = {2018},
  eprint = {1801.10055},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1801.10055v4},
}