@ARTICLE\{IMM1992-02572,
    author       = "C. K. Hansen and P. Thyregod",
    title        = "On the analysis of field failure data for repairable systems",
    year         = "1992",
    pages        = "47-51",
    journal      = "Reliability and System Safety",
    volume       = "36",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2572-full.html"
}