@inproceedings{dhs97,
    author = {Döllner, Jürgen and Hinrichs, Klaus and Spiegel, H.},
    booktitle = {ACM Proceedings of the 13 th Annual Symposium on Computational Geometry},
    title = {An Interactive Environment for Visualizing and Animating Algorithms},
    year = {1997},
    pages = {409--411},
}