@InProceedings{Ruder:2006:VR,
    author = {H. Ruder and H.-P. Nollert and T. M{\"u}ller and M. Borchers},
    title  = {Visualization of relativistic effects},
    booktitle = {Proceedings of the 11th Marcel Grossmann Meeting on General Relativity},
    year = {2006}
}