@CONFERENCE\{IMM1988-02917,
    author       = "B. F. Nielsen",
    title        = "Service Protection by Time-in",
    year         = "1988",
    month        = "jun",
    pages        = "5.4B.6.1-5.",
    booktitle    = "ITC-12 Teletraffic Sciences for New Cost Effective Systems",
    volume       = "",
    series       = "",
    editor       = "M. Bonatti",
    publisher    = "North-Holland",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2917-full.html"
}