@inproceedings{gd07,
    author = {Glander, Tassilo and Döllner, Jürgen},
    booktitle = {15th International Symposium on Advances in Geographic Information Systems (ACM GIS)},
    title = {Cell-Based Generalization of 3D Building Groups with Outlier Management},
    year = {2007},
    publisher = {ACM Press},
    doi = {10.1145/1341012.1341078},
}