@BOOK\{IMM2001-01901,
    author       = "M. R. Hansen",
    title        = "The 13th Nordic Workshop on Programming Theory",
    year         = "2001",
    volume       = "",
    number       = "IMM2001",
    series       = "",
    publisher    = "IMM",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1901-full.html"
}