http://www.watch.impress.co.jp/game/docs/20051104/dis.htm
http://www.famitsu.com/pcent/news/2005/11/01/505,1130842980,45229,0,0.html
http://www.famitsu.com/game/coming/2005/10/27/104,1130421453,45041,0,0.html
http://www.famitsu.com/game/coming/2005/10/08/104,1128714292,45072,0,0.html
http://plusd.itmedia.co.jp/games/articles/0511/04/news085.html
http://www.watch.impress.co.jp/game/docs/20051104/sdg.htm
http://www.dengekionline.com/data/news/2005/11/04/a33e0f3dc5761ec85757e9af7a96d701.html
http://plusd.itmedia.co.jp/games/articles/0511/04/news041.html