@TECHREPORT\{IMM1993-03510,
    author       = "H. M. Sommer and H. Holst and H. Spliid and E. Arvin",
    title        = "Non-linear parameter estimation in microbiologic degradation systems and statistic test for common estimation",
    year         = "1993",
    number       = "19",
    series       = "",
    institution  = "Informatics and 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/3510-full.html"
}