@InProceedings{akman-dublin,
    author = "Akman, Varol and Arslan, A. and Franklin, W. Randolph and ten {H}agen, P. J. W.",
    title = "Implementing a Topological Picturebook",
    booktitle = "Proc. 13th IMACS World Congress on Computation and Applied Maths",
    year = "1991",
    address = "Dublin",
    mykey = "akman"
}