@InProceedings{odersky:observers,
  author = 	"Martin Odersky",
  title = 	"Observers for Linear Types",
  pages = 	"390--407",
  booktitle = 	"{ESOP} '92: 4th {E}uropean Symposium on Programming,
                 {R}ennes, France, Proceedings",
  year = 	1992,
  editor = 	"B. Krieg-Br{\"{u}}ckner",
  publisher = 	"Springer-Verlag",
  month = 	"February",
  note = 	"Lecture Notes in Computer Science 582"
}