@Book{BMS03,
    Author       = "Berghammer, R. and M{\"o}ller, B. and Struth, G.",
    Year         = "2003",
    Title        = "{Relational and Kleene-Algebraic Methods in Computer
                    Science - Proceedings of the 7th International Seminar
                    on Relational Methods in Computer Science and the 2nd
                    International Workshop on Applications of Kleene Algebra}",
    Series       = "Lecture Notes in Computer Science",
    Number       = "3051",
    Publisher    = "Springer-Verlag",
    Comment      = ""
}