%% You should probably cite rfc6793 instead of this I-D.
@techreport{ietf-idr-rfc4893bis-07,
    number =    {draft-ietf-idr-rfc4893bis-07},
    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-rfc4893bis/07/},
    author =    {Quaizar Vohra and Enke Chen},
    title =     {{BGP Support for Four-Octet Autonomous System (AS) Number Space}},
    pagetotal = 12,
    year =      2012,
    month =     jun,
    day =       22,
    abstract =  {The Autonomous System number is encoded as a two-octet entity in the base BGP specification. This document describes extensions to BGP to carry the Autonomous System numbers as four-octet entities. This document obsoletes RFC 4893 and updates RFC 4271. {[}STANDARDS-TRACK{]}},
}