(http://www.saiani.net/article/84154149.html)

(http://dol.dengeki.com/data/news/2008/2/15/c082973ecb962c2227323b842f149ea0.html)

(http://upatea.sakura.ne.jp/log/eid861.html)

(http://guideline.livedoor.biz/archives/51025948.html)