@inproceedings{lintu2007nebulae,
    author = {Lin{\c{t}}u, Andrei and Lensch, Hendrik and Magnor, Marcus and El-Abed, Sascha and Seidel, Hans-Peter},
    title = {{3D} Reconstruction of Emission and Absorption in Planetary Nebulae},
    booktitle = {Proc. {IEEE/EG} International Symposium on Volume Graphics {(VG)} 2007},
    pages = {9--16},
    month = sep,
    year = {2007}
}