@CONFERENCE\{IMM1991-02327,
    author       = "D. Bj{\o}rner",
    title        = "Formal Specification is an Experimental Science (in English)",
    year         = "1991",
    booktitle    = "Intl. Conf. on Perspectives of System Informatics",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2327-full.html"
}