%% You should probably cite rfc2858 instead of this I-D.
@techreport{ietf-idr-bgp4-multiprotocol-v2-04,
    number =    {draft-ietf-idr-bgp4-multiprotocol-v2-04},
    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-idr-bgp4-multiprotocol-v2/04/},
    author =    {Yakov Rekhter and Tony J. Bates and Ravi Chandra and Dave Katz},
    title =     {{Multiprotocol Extensions for BGP-4}},
    pagetotal = 11,
    year =      2000,
    month =     feb,
    day =       8,
    abstract =  {This document defines extensions to BGP-4 to enable it to carry routing information for multiple Network Layer protocols (e.g., IPv6, IPX, etc...). {[}STANDARDS-TRACK{]}},
}