@InProceedings{Rue12,
    Author       = "R{\"u}mmer, P.",
    Year         = "2012",
    Title        = "{E-Matching with Free Variables}",
    Editor       = "Bj{\o}rner, N. and Voronkov, A.",
    BookTitle    = "{Proceedings of the 18th International Conference on Logic
                    for Programming, Artificial Intelligence, and Reasoning}",
    Place        = "Merida, Venezuela",
    Series       = "Lecture Notes in Artificial Intelligence",
    Number       = "7180",
    Pages        = "359-374",
    Publisher    = "Springer-Verlag",
    Comment      = ""
}