@BOOK\{IMM1992-02485,
    author       = "H. Riis Nielson and F. Nielson",
    title        = "Semantics with Applications: A Formal Introduction",
    year         = "1992",
    volume       = "",
    number       = "",
    series       = "",
    publisher    = "Wiley",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2485-full.html"
}