@INCOLLECTION\{IMM1990-03833,
    author       = "V. V. Vidal",
    title        = "{OR} and Social praxis",
    year         = "1990",
    pages        = "14",
    booktitle    = "Liber Amicorum for prof. Arne Jensen",
    volume       = "",
    number       = "",
    series       = "",
    publisher    = "{IMSOR,} {DTH}",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3833-full.html"
}