http://www.efg2.com/Lab/Library/Delphi/MathInfo/Resources.htm

http://www.zdnet.co.jp/help/tips/windows/w0595.html

http://www.atmarkit.co.jp/fwin2k/win2ktips/050nettime/nettime.html

http://au2.spamassassin.org/index.html

http://www.asahi-net.or.jp/~sd5a-ucd/freefonts/xWatanabe-WadaLab-mincho/