[1] RFC 3507 - Internet Content Adaptation Protocol (ICAP) ( ( 版)) http://tools.ietf.org/html/rfc3507
[3] RFC Errata Report » RFC Editor, https://www.rfc-editor.org/errata_search.php?rfc=3507
[4] ICAP Errata, , http://www.measurement-factory.com/std/icap/
[6] , http://www.measurement-factory.com/std/icap/rfc3507-fixed.txt
[2] draft-stecher-icap-subid-00 - ICAP Extensions ( ( 版)) http://tools.ietf.org/html/draft-stecher-icap-subid-00