@TECHREPORT\{IMM2002-01475,
    author       = "M. Rostgaard and N. K. Poulsen and O. Ravn",
    title        = "Delta-operator techniques for pay-load estimation of a {2DOF} flexible link robot",
    year         = "2002",
    number       = "03",
    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/1475-full.html"
}