@inproceedings{tgbd08,
    author = {Trapp, Matthias and Glander, Tassilo and Buchholz, Henrik and Döllner, Jürgen},
    booktitle = {12th International Conference on IEEE Information Visualization},
    title = {3D Generalization Lenses for Interactive Focus + Context Visualization of Virtual City Models},
    year = {2008},
    pages = {356--361},
    publisher = {IEEE Computer Society Press},
    doi = {10.1109/IV.2008.18},
}