%% You should probably cite rfc9263 instead of this I-D.
@techreport{ietf-sfc-nsh-tlv-03,
    number =    {draft-ietf-sfc-nsh-tlv-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-sfc-nsh-tlv/03/},
    author =    {Yuehua Wei and Uri Elzur and Sumandra Majee},
    title =     {{Network Service Header Metadata Type 2 Variable-Length Context Headers}},
    pagetotal = 12,
    year =      2020,
    month =     may,
    day =       21,
    abstract =  {This draft describes Network Service Header (NSH) Metadata (MD) Type 2 variable-length context headers that can be used within a service function path.},
}