@article{logicallimitationstomachineethicswith,
  title = {Logical Limitations to Machine Ethics with Consequences to Lethal Autonomous Weapons},
  author = {Matthias Englert and Sandra Siebert and Martin Ziegler},
  year = {2014},
  eprint = {1411.2842},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1411.2842v1},
}