@MISC\{IMM1973-03775,
    author       = "V. V. Vidal",
    title        = "Relaxation and Bender's partitioning algorithm",
    year         = "1973",
    pages        = "11",
    publisher    = "{IMSOR,} {DTH}",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3775-full.html"
}