- [1] https://s3d.sourceforge.net/doc/devel/
- [2] https://s3d.sourceforge.net/doc/0.1/
- [3] https://s3d.sourceforge.net/doc/0.2/
- [4] https://s3d.sourceforge.net/doc/0.2.1/
- [5] https://s3d.sourceforge.net/doc/0.2.2/
- [6] https://s3d.sourceforge.net/doc/0.2.2.1/