@CONFERENCE\{IMM2003-03031,
    author       = "J. F. Nilsson and P. A. Jensen",
    title        = "Ontology-based Semantics for Prepositions",
    year         = "2003",
    booktitle    = "{ACM-SIGSEM} Workshop on  the Linguistic Dimension of  Prepositions and their use in Computational Linguistics",
    volume       = "",
    series       = "{UMR} 5505 {CNRS-INP-UPS}",
    editor       = "",
    publisher    = "Institut de Recherce en Informatique de Toulouse,",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3031-full.html"
}