%% You should probably cite rfc3510 instead of this I-D.
@techreport{ietf-ipp-url-scheme-04,
    number =    {draft-ietf-ipp-url-scheme-04},
    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-url-scheme/04/},
    author =    {Robert G. Herriot and Ira McDonald},
    title =     {{Internet Printing Protocol/1.1: IPP URL Scheme}},
    pagetotal = 16,
    year =      2002,
    month =     jan,
    day =       14,
    abstract =  {This memo defines the "ipp" URL (Uniform Resource Locator) scheme. This memo updates IPP/1.1: Encoding and Transport (RFC 2910), by expanding and clarifying Section 5, "IPP URL Scheme", of RFC 2910. An "ipp" URL is used to specify the network location of a print service that supports the IPP Protocol (RFC 2910), or of a network resource (for example, a print job) managed by such a print service. {[}STANDARDS-TRACK{]}},
}