@inproceedings{bdnk05,
    author = {Buchholz, Henrik and Döllner, Jürgen and Nienhaus, Marc and Kirsch, Florian},
    booktitle = {1st International Workshop on Next Generation 3D City Models},
    title = {Real-Time Non-Photorealistic Rendering of 3D City Models},
    year = {2005},
    note = {Online proceedings},
    publisher = {EuroSDR},
}