@CONFERENCE\{IMM2003-01953,
    author       = "D. Bj{\o}rner",
    title        = "New Results and Trends in Formal Techniques for the Development of Software for Transportation Systems.",
    year         = "2003",
    month        = "apr",
    booktitle    = "FORMS2003: Symposium on Formal Methods for Railway Operation and Control Systems.",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "L'Harmattan Hongrie",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1953-full.html"
}