@PHDTHESIS\{IMM1998-01207,
    author       = "I. Frydendal",
    title        = "Quality inspection of sugar beets using vision.",
    year         = "1998",
    pages        = "iv+97 pp.",
    school       = "Department of Mathematical Modelling, Technical University of Denmark, {DTU}",
    address      = "Richard Petersens Plads, Building 321, {DK-}2800 Kgs. Lyngby",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1207-full.html",
    isbn_issn    = "{ISSN} 0909-3192"
}