%% You should probably cite rfc3229 instead of this I-D.
@techreport{mogul-http-delta-10,
    number =    {draft-mogul-http-delta-10},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-mogul-http-delta/10/},
    author =    {Arthur van Hoff and Fred Douglis and Balachander Krishnamurthy and Yaron Y. Goland and Daniel M. Hellerstein and Anja Feldmann and Jeffrey Mogul},
    title =     {{Delta encoding in HTTP}},
    pagetotal = 49,
    year =      2001,
    month =     oct,
    day =       4,
    abstract =  {This document describes how delta encoding can be supported as a compatible extension to HTTP/1.1. {[}STANDARDS-TRACK{]}},
}