[1] [CITE@en[draft-nottingham-http-new-status-00 - Additional HTTP Status Codes]]
( ([TIME[2012-02-05 01:07:40 +09:00]] 版))
<http://tools.ietf.org/html/draft-nottingham-http-new-status-00#section-5>

[2] [CITE@en[draft-nottingham-http-pipeline-01 - Making HTTP Pipelining Usable on the Open Web]]
( ([TIME[2011-11-20 01:13:15 +09:00]] 版))
<http://tools.ietf.org/html/draft-nottingham-http-pipeline-01#section-8>