%% You should probably cite rfc4506 instead of this I-D.
@techreport{ietf-nfsv4-rfc1832bis-06,
    number =    {draft-ietf-nfsv4-rfc1832bis-06},
    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-nfsv4-rfc1832bis/06/},
    author =    {Mike Eisler},
    title =     {{XDR: External Data Representation Standard}},
    pagetotal = 27,
    year =      2005,
    month =     may,
    day =       6,
    abstract =  {This document describes the External Data Representation Standard (XDR) protocol as it is currently deployed and accepted. This document obsoletes RFC 1832. {[}STANDARDS-TRACK{]}},
}