@TECHREPORT\{IMM1997-02345,
    author       = "D. Bj{\o}rner",
    title        = "From Domain Engineering via  Requirements to Software. Formal  Specification and Design Calculi",
    year         = "1997",
    number       = "",
    series       = "",
    institution  = "Department of Information Technology,  Software Systems Section,  Technical University of Denmark",
    address      = "DK-2800 Lyngby, Denmark",
    type         = "",
    note         = "Paper published in {SOFSEM'}97 Proceedings, Springer-Verlag, Lecture Notes in Computer Science.  http://www.it.dtu.dk/\verb+~+db/sofsem/sofsem.ps",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2345-full.html"
}