@inproceedings{stobart1990process,
  title = "Process control supervision using qualitative models",
  author = "Stobart, RK and Shadbolt, NR",
  year = "1990",
  booktitle = "Proceedings of the 3rd international conference on Industrial and engineering applications of artificial intelligence and expert systems-Volume 1",
  organization = "ACM",
  pages = "440--448",
}