@inproceedings{rob-02-robwill,
  author = {James A. D. W. Anderson},
  title = {Robot Free Will},
  booktitle = {Proc. 15th European Conference on Artificial Intelligence},
  pages = {559--563},
  year = 2002,
  url = {http://www.bookofparagon.btinternet.co.uk/Robots/ECAI.2002.pdf},
  comment = {Uses oriented projective geometry.}
}