%% You should probably cite draft-ietf-httpbis-semantics instead of this I-D.
@techreport{fielding-httpbis-http-semantics-00,
    number =    {draft-fielding-httpbis-http-semantics-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-fielding-httpbis-http-semantics/00/},
    author =    {Roy T. Fielding and Julian Reschke},
    title =     {{Hypertext Transfer Protocol: Semantics and Content}},
    pagetotal = 100,
    year =      2018,
    month =     mar,
    day =       5,
    abstract =  {The Hypertext Transfer Protocol (HTTP) is a stateless application- level protocol for distributed, collaborative, hypertext information systems. This document defines the semantics of HTTP/1.1 messages, as expressed by request methods, request header fields, response status codes, and response header fields, along with the payload of messages (metadata and body content) and mechanisms for content negotiation. This document obsoletes RFC 7231.},
}