@CONFERENCE\{IMM1982-02041,
    author       = "D. Bj{\o}rner and H. H. L{\o}vengreen",
    title        = "Formalization of Database Systems -- and a Formal  Definition of \{IMS\}",
    year         = "1982",
    pages        = "334-347",
    booktitle    = "Eigth International Conference on Very Large Data Bases",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2041-full.html"
}