I, the copyright holder of this work, hereby publish it under the following licenses:
この作品の著作権者である私は、この作品を以下のライセンスで提供します。
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.