@CONFERENCE\{IMM1990-02050,
    author       = "P. Gr{\o}nning and T. Q. Nielsen and H. H. L{\o}vengreen",
    title        = "Refinement and Composition of Transition-based  Rely-Guarantee Specifications with Auxiliary Variables",
    year         = "1990",
    pages        = "332-348",
    booktitle    = "10'th Conference on Foundations for Software  Technology and Theoretical Computer Science",
    volume       = "472",
    series       = "Lecture Notes in Computer Science",
    editor       = "K.V. Nori and C.E. Veni Madhavan",
    publisher    = "Springer-Verlag",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2050-full.html"
}