[1]
[CITE@en-US[David Baron's weblog: March 2007]] ([CODE[2007-03-25 14:52:46 +09:00]] 版) <http://dbaron.org/log/2007-03#e20070324b>
([[名無しさん]] [WEAK[2007-03-25 05:54:29 +00:00]])

[2]
[CITE@en-US[David Baron's weblog: March 2007]] ([CODE[2007-03-25 14:52:46 +09:00]] 版) <http://dbaron.org/log/2007-03#e20070324b>
([[名無しさん]] [WEAK[2007-03-25 06:14:58 +00:00]])

[3]
[CITE[The Norwegians get it! - O'Reilly XML Blog]] ([[Rick Jelliffe]] 著, [CODE[2007-05-17 20:37:56 +09:00]] 版) <http://www.oreillynet.com/xml/blog/2007/05/the_norwegians_get_it.html>
([[名無しさん]] [WEAK[2007-05-17 11:39:07 +00:00]])


[4]
[CITE[Wasting resources - Anne’s Weblog]] ([TIME[2007-05-20 06:46:44 +09:00]] 版) <http://annevankesteren.nl/2007/05/wasting-resources>
([[名無しさん]] [WEAK[2007-05-20 01:43:35 +00:00]])