@article{robotslearningtosaynoprohibitionand,
  title = {Robots Learning to Say `No': Prohibition and Rejective Mechanisms in Acquisition of Linguistic Negation},
  author = {Frank Förster and Joe Saunders and Hagen Lehmann and Chrystopher L. Nehaniv},
  year = {2018},
  eprint = {1810.11804},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1810.11804v1},
}