%% You should probably cite rfc8881 instead of this I-D.
@techreport{ietf-nfsv4-rfc5661sesqui-msns-00,
    number =    {draft-ietf-nfsv4-rfc5661sesqui-msns-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-ietf-nfsv4-rfc5661sesqui-msns/00/},
    author =    {David Noveck and Chuck Lever},
    title =     {{Network File System (NFS) Version 4 Minor Version 1 Protocol}},
    pagetotal = 660,
    year =      2019,
    month =     jun,
    day =       25,
    abstract =  {This document describes the Network File System (NFS) version 4 minor version 1, including features retained from the base protocol (NFS version 4 minor version 0, which is specified in RFC 7530) and protocol extensions made subsequently. The later minor version has no dependencies on NFS version 4 minor version 0, and is considered a separate protocol. This document obsoletes RFC5661. It substantialy revises the treatment of features relating to multi-server namesapce superseding the description of those features appearing in RFC5661.},
}