@BOOK\{IMM2006-04131,
    author       = "D. Bj{\o}rner",
    title        = "Software Engineering, vol 2: Specification of Systems and Languages",
    year         = "2006",
    volume       = "",
    number       = "",
    series       = "Texts in Theoretical Computer Science",
    publisher    = "Springer",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/4131-full.html",
    isbn_issn    = "3-540-21150-0"
}