@article{deonticlogicforhumanreasoning,
  title = {Deontic Logic for Human Reasoning},
  author = {Ulrich Furbach and Claudia Schon},
  year = {2014},
  eprint = {1404.6974},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1404.6974v2},
}