@TECHREPORT\{IMM2004-05431, author = "J. Tyssedal and M. Kulahci", title = "Split-Plot Designs with Economical Run Sizes", year = "2004", number = "", series = "Department of Mathematical Sciences Technical Report Series", institution = "Norwegian University of Science and Technology", address = "", type = "", url = "http://www2.compute.dtu.dk/pubdb/pubs/5431-full.html", isbn_issn = "1/04" }