%% You should probably cite rfc6578 instead of this I-D.
@techreport{daboo-webdav-sync-08,
    number =    {draft-daboo-webdav-sync-08},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-daboo-webdav-sync/08/},
    author =    {Cyrus Daboo and Arnaud Quillaud},
    title =     {{Collection Synchronization for Web Distributed Authoring and Versioning (WebDAV)}},
    pagetotal = 29,
    year =      2012,
    month =     jan,
    day =       30,
    abstract =  {This specification defines an extension to Web Distributed Authoring and Versioning (WebDAV) that allows efficient synchronization of the contents of a WebDAV collection. {[}STANDARDS-TRACK{]}},
}