@BOOK\{IMM1992-02566,
    author       = "E. L. Hjorth and H. B. Nielsen and P. Thyregod",
    title        = "SPC-Statistisk processtyring",
    year         = "1992",
    volume       = "",
    number       = "",
    series       = "DS/{INF} 66",
    publisher    = "Dansk Standard",
    address      = "Copenhagen",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2566-full.html",
    isbn_issn    = "87-7310-143-5"
}