@inproceedings{ld09,
    author = {Lorenz, Haik and Döllner, Jürgen},
    booktitle = {GRAPP 2009 - International Conference on Computer Graphics Theory and Applications},
    title = {Real-time Piecewise Perspective Projections},
    year = {2009},
    pages = {147--155},
    publisher = {INSTICC Press},
}