@BOOK\{IMM1982-02260,
    author       = "D. Bj{\o}rner",
    title        = "Formal Description of Programming Concepts (II)",
    year         = "1982",
    volume       = "",
    number       = "",
    series       = "",
    publisher    = "{IFIP} {TC-}2 Work.Conf., Garmisch-Partkirschen",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2260-full.html"
}