@BOOK\{IMM1980-02258,
    author       = "D. Bj{\o}rner and O. Oest",
    title        = "Towards a Formal Description of Ada",
    year         = "1980",
    volume       = "98",
    number       = "",
    series       = "LNCS",
    publisher    = "S",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2258-full.html"
}