@article{rbd12,
    author = {Richter, Rico and Behrens, Markus and Döllner, Jürgen},
    journal = {International Journal of Remote Sensing},
    title = {Object class segmentation of massive 3D point clouds of urban areas using point cloud topology},
    year = {2013},
    number = {23},
    pages = {8408--8424},
    volume = {34},
    doi = {10.1080/01431161.2013.838710},
}