http://www.rfc-editor.org/rfc/rfc5995.txt
RFC 5995: Using POST to Add Members to Web Distributed Authoring and Versioning (WebDAV) Collections, J. Reschke2010-09-01T23:00:00-00:00This specification defines a discovery mechanism through which servers can advertise support for POST requests with the aforementioned "add collection member" semantics. [STANDARDS-TRACK]