%% You should probably cite rfc2639 instead of this I-D.
@techreport{ietf-ipp-implementers-guide-01,
    number =    {draft-ietf-ipp-implementers-guide-01},
    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-ipp-implementers-guide/01/},
    author =    {Thomas N. Hastings and Carl-Uno Manros},
    title =     {{Internet Printing Protocol/1.0: Implementer's Guide}},
    pagetotal = 64,
    year =      1999,
    month =     feb,
    day =       26,
    abstract =  {This document contains information that supplements the IPP Model and Semantics and the IPP Transport and Encoding documents. It is intended to help implementers understand IPP/1.0 and some of the considerations that may assist them in the design of their client and/or IPP object implementations. This memo provides information for the Internet community.},
}