%% You should probably cite draft-pot-caldav-sharing-01 instead of this revision.
@techreport{pot-caldav-sharing-00,
    number =    {draft-pot-caldav-sharing-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-pot-caldav-sharing/00/},
        author =    {Evert Pot and Cyrus Daboo and Eric York \textless{}\textgreater{}},
    title =     {{CalDAV Calendar Sharing}},
    pagetotal = 6,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {This specification defines sharing calendars between users on a CalDAV server.},
}