@inproceedings{HiW11Cat,
    author    = {Hinze, Ralf and  Wu, Nicolas},
    booktitle = {ACM SIGPLAN 7th Workshop on Generic Programming},
    date      = {18 September 2011},
    editor    = {J\"{a}rvi, Jaakko and Mu, Shin-Cheng},
    location  = {Tokyo, Japan},
    note      = {accepted for publication},
    title     = {Towards a Categorical Foundation for Generic Programming},
    year      = 2011,
    url       = {http://www.cs.ox.ac.uk/ralf.hinze/WGP11.html}
}