@TECHREPORT\{IMM1990-02049,
    author       = "L. S. Jensen and H. H. L{\o}vengreen",
    title        = "Distributed Implementation of {DATALOG}",
    year         = "1990",
    number       = "",
    series       = "ID-TR: 1990-78",
    institution  = "Department of Computer Science, Technical University of  Denmark",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2049-full.html"
}