[1] RFC 3253 - Versioning Extensions to WebDAV (Web Distributed Authoring and Versioning) () <https://tools.ietf.org/html/rfc3253#section-4.5>
[2] Issues List for Versioning Extensions to WebDAV (RFC 3253) () <http://www.webdav.org/deltav/protocol/rfc3253-issues-list.htm>
[3] RFC 3648 - Web Distributed Authoring and Versioning (WebDAV) Ordered Collections Protocol () <https://tools.ietf.org/html/rfc3648#section-9>
[4] RFC 3648 - Web Distributed Authoring and Versioning (WebDAV) Ordered Collections Protocol () <https://tools.ietf.org/html/rfc3648#section-9.4>