%% You should probably cite rfc3191 instead of this I-D.
@techreport{ietf-fax-minaddr-v2-04,
    number =    {draft-ietf-fax-minaddr-v2-04},
    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-fax-minaddr-v2/04/},
    author =    {Claudio Allocchio},
    title =     {{Minimal GSTN address format in Internet Mail}},
    pagetotal = 13,
    year =      2001,
    month =     jun,
    day =       27,
    abstract =  {This memo describes a simple method of encoding Global Switched Telephone Network (GSTN) addresses (commonly called "telephone numbers") in the local-part of Internet email addresses, along with an extension mechanism to allow encoding of additional standard attributes needed for email gateways to GSTN-based services. {[}STANDARDS-TRACK{]}},
}