%% You should probably cite rfc7236 instead of this I-D.
@techreport{ietf-httpbis-authscheme-registrations-03,
    number =    {draft-ietf-httpbis-authscheme-registrations-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-httpbis-authscheme-registrations/03/},
    author =    {Julian Reschke},
    title =     {{Initial Hypertext Transfer Protocol (HTTP) Authentication Scheme Registrations}},
    pagetotal = 4,
    year =      2012,
    month =     feb,
    day =       20,
    abstract =  {This document registers Hypertext Transfer Protocol (HTTP) authentication schemes which have been defined in standards-track RFCs before the IANA HTTP Authentication Scheme Registry was established.},
}