@ARTICLE\{IMM2006-04794,
    author       = "J. Tyssedal and M. Kulahci and S. Bisgaard",
    title        = "Split-Plot Designs with Mirror Image Pairs as Subplots",
    year         = "2006",
    journal      = "Journal of Quality Technology",
    volume       = "",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/4794-full.html"
}