%% You should probably cite rfc7095 instead of this I-D.
@techreport{ietf-jcardcal-jcard-06,
    number =    {draft-ietf-jcardcal-jcard-06},
    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-jcardcal-jcard/06/},
    author =    {Philipp Kewisch},
    title =     {{jCard: The JSON format for vCard}},
    pagetotal = 33,
    year =      2013,
    month =     sep,
    day =       26,
    abstract =  {This specification defines "jCard", a JSON format for vCard data. The vCard data format is a text format for representing and exchanging information about individuals and other entities, for example telephone numbers, email addresses, structured names and delivery addresses. JSON is a lightweight, text-based, language- independent data interchange format commonly used in internet applications.},
}