@InProceedings{Laurent01,
  author    = {Olivier Laurent},
  title     = {A Token Machine for Full Geometry of Interaction (Extended Abstract)},
  booktitle = {Typed Lambda Calculi and Applications '01},
  editor    = {Samson Abramsky},
  series    = {Lecture Notes in Computer Science},
  volume    = {2044},
  publisher = {Springer},
  pages     = {283--297},
  month     = may,
  year      = {2001}
}