@ARTICLE\{IMM1970-02288,
    author       = "D. Bj{\o}rner",
    title        = "Flowchart-Machines",
    year         = "1970",
    pages        = "415-442",
    journal      = "BIT",
    volume       = "10",
    editor       = "",
    number       = "4",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2288-full.html"
}