%% You should probably cite rfc7861 instead of this I-D.
@techreport{ietf-nfsv4-rpcsec-gssv3-15,
    number =    {draft-ietf-nfsv4-rpcsec-gssv3-15},
    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-rpcsec-gssv3/15/},
    author =    {Andy Adamson and Nicolás Williams},
    title =     {{Remote Procedure Call (RPC) Security Version 3}},
    pagetotal = 22,
    year =      2016,
    month =     jan,
    day =       6,
    abstract =  {This document specifies version 3 of the Remote Procedure Call (RPC) security protocol (RPCSEC\_GSS). This protocol provides support for multi-principal authentication of client hosts and user principals to a server (constructed by generic composition), security label assertions for multi-level and type enforcement, structured privilege assertions, and channel bindings.},
}