@ARTICLE\{IMM2003-01486,
    author       = "L. Csato and M. Opper and O. Winther",
    title        = "Tractable Inference for Probabilistic Data Models",
    year         = "2003",
    pages        = "64-68",
    journal      = "Complexity",
    volume       = "8",
    editor       = "",
    number       = "4",
    publisher    = "Wiley",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1486-full.html"
}