@article{steffen2010shape,
  title = {Shape: A 3D Modeling Tool for Astrophysics},
  author = {Steffen, Wolfgang and Koning, Nicholas and Wenger, Stephan and Morisset, Christophe and Magnor, Marcus},
  journal = {{IEEE} Transactions on Visualization and Computer Graphics ({TVCG})},
  doi = {10.1109/tvcg.2010.62},
  volume = {17},
  number = {4},
  pages = {454--465},
  month = {Apr},
  year = {2011}
}