%% You should probably cite draft-ietf-dime-capablities-update instead of this I-D.
@techreport{zorn-dime-capablities-update-01,
    number =    {draft-zorn-dime-capablities-update-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-zorn-dime-capablities-update/01/},
    author =    {Glen Zorn and Jiao Kang},
    title =     {{The Diameter Capabilities Update Application}},
    pagetotal = 7,
    year =      2009,
    month =     apr,
    day =       12,
    abstract =  {This document defines a new Diameter application and associated command codes. The Capabilities Update application is intended to allow the dynamic update of Diameter peer capabilities while the peer-to-peer connection is in the open state.},
}