1. Robert McNeel & Associates, Rhinoceros, http://www.rhino3d.com/ .
2. Autodesk, 3ds max, http://usa.autodesk.com/3ds-max/ .
3. Autodesk, Maya, http://usa.autodesk.com/maya/ .
4. Vladimir Bulatov, Bulatov abstract creations, http://bulatov.org/ .
5. ISTI CNR, MeshLab, http://meshlab.sourceforge.net/ .