@INPROCEEDINGS{Benveniste98b,
  author = {Benveniste, A. and Gaubert, S. and Jard, C.},
  title = {Monotone rational series and Max-plus algebraic models of real-time
	systems},
  booktitle = {4th Workshop on Discrete Event Systems, Wodes'98},
  year = {1998},
  address = {Cagliari, Italy},
  month = {aug}
}