@CONFERENCE\{IMM1983-01588,
    author       = "F. Nielson",
    title        = "Towards Viewing Nondeterminism as  Abstract Interpretation",
    year         = "1983",
    booktitle    = "Proc. Foundations of Software Technology and  Theoretical Computer Science",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1588-full.html"
}