http://www.asahi-net.or.jp/~cs8k-cyu/bulletml/index_e.html, or the
python-bullet homepage, http://code.google.com/p/python-bulletml/.
http://www.asahi-net.or.jp/~cs8k-cyu/bulletml/index_e.html, or the
python-bullet homepage, http://code.google.com/p/python-bulletml/.