N. Koning

Shape: A 3D Modeling Tool for Astrophysics

Marcus A. Magnor, Stephan Wenger, Wolfgang Steffen, 2010, IEEE Transactions on Visualization and Computer Graphics.

SHAPEMOL: a 3D code for calculating CO line emission in planetary and protoplanetary nebulae: Detailed model-fitting of the complex nebula NGC 6302

W. Steffen, V. Bujarrabal, M. Santander-García, 2014, 1410.6691.

Hybrid polygon and hydrodynamic nebula modeling with multi-waveband radiation transfer in astrophysics

Wolfgang Steffen, Nico Koning, W. Steffen, 2017, Astron. Comput..