@article{ Lesperance95b,
  ps = {http://www.cs.toronto.edu/cogrobo/Papers/indexmodal.ps}
}
,
  title = {Indexical Knowledge and Robot Action -- A Logical Account}
}
,
  url = {indexmodal.pdf}
}
,
  journal = {Artificial Intelligence}
}
,
  author = {Lespérance, Y. and Levesque, H. J.}
}
,
  volume = {73}
}
,
  key = {CogRobo}
}
,
  year = {1995}
}
,
  opturl = {http://www.cs.toronto.edu/cogrobo/Papers/indexmodal.ps.gz}
}
,
  pdf = {http://www.cs.toronto.edu/cogrobo/Papers/indexmodal.pdf}
}
,
  pages = {69--115}
}