@TECHREPORT\{IMM1999-05430,
    author       = "S. Bisgaard and M. Kulahci",
    title        = "Finding Assignable Causes",
    year         = "1999",
    number       = "",
    series       = "Institute for Technology Management Report Series",
    institution  = "University of St. Gallen",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/5430-full.html",
    isbn_issn    = "7"
}