@INCOLLECTION\{IMM1982-02042,
    author       = "D. Bj{\o}rner and H. H. L{\o}vengreen",
    title        = "Formalization of Database Models",
    year         = "1982",
    pages        = "379-442",
    booktitle    = "Formal Specification and Software Development",
    volume       = "",
    number       = "",
    series       = "",
    publisher    = "",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2042-full.html"
}