%% You should probably cite rfc4236 instead of this I-D.
@techreport{ietf-opes-http-03,
    number =    {draft-ietf-opes-http-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-opes-http/03/},
    author =    {Alex Rousskov and Martin Stecher},
    title =     {{HTTP Adaptation with Open Pluggable Edge Services (OPES)}},
    pagetotal = 27,
    year =      2005,
    month =     apr,
    day =       20,
    abstract =  {Open Pluggable Edge Services (OPES) framework documents several application-agnostic mechanisms such as OPES tracing, OPES bypass, and OPES callout protocol. This document extends those generic mechanisms for Hypertext Transfer Protocol (HTTP) adaptation. Together, application-agnostic OPES documents and this HTTP profile constitute a complete specification for HTTP adaptation with OPES. {[}STANDARDS-TRACK{]}},
}