[1] [CITE@en[RFC 5537 - Netnews Architecture and Protocols]]
([TIME[2009-12-29 07:15:42 +09:00]] 版)
<http://tools.ietf.org/html/rfc5537>

[2] [CITE[RFC Errata Report]]
( ([TIME[2014-12-04 18:47:47 +09:00]] 版))
<http://www.rfc-editor.org/errata_search.php?rfc=5537>