[1] RFC 5988 - Web Linking ( ( 版)) <http://tools.ietf.org/html/rfc5988#page-16>
[2] RFC 5829 - Link Relation Types for Simple Version Navigation between Web Resources ( 版) <http://tools.ietf.org/html/rfc5829#section-4.3>
[4] RFC 5829 - Link Relation Types for Simple Version Navigation between Web Resources ( 版) <http://tools.ietf.org/html/rfc5829#section-2>
A "working copy" is a resource at a server-defined URL that can be used to create a new version of a versioned resource.
[5] RFC 5829 - Link Relation Types for Simple Version Navigation between Web Resources ( 版) <http://tools.ietf.org/html/rfc5829#section-3.3>
[6] RFC 5829 - Link Relation Types for Simple Version Navigation between Web Resources ( 版) <http://tools.ietf.org/html/rfc5829#section-3.4>
[3] RFC 5829 - Link Relation Types for Simple Version Navigation between Web Resources ( 版) <http://tools.ietf.org/html/rfc5829#appendix-A>