- http://www.uthcode.com/pythondesign.html#python-internals
- http://greentreesnakes.readthedocs.org/en/latest/nodes.html
- http://wiki.python.org/moin/PythonImplementations
- https://www.youtube.com/watch?v=XGF3Qu4dUqk
- http://www.python.org/dev/peps/pep-0339/
- http://tech.blog.aknin.name/2010/04/02/pythons-innards-introduction/
- http://tech.blog.aknin.name/2010/09/02/pythons-innards-hello-ceval-c-2/
- http://eli.thegreenplace.net/2009/11/28/python-internals-working-with-python-asts/
- http://pyevolve.sourceforge.net/wordpress/?p=2353