%% You should probably cite rfc3113 instead of this I-D.
@techreport{3gpp-collaboration-01,
    number =    {draft-3gpp-collaboration-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-3gpp-collaboration/01/},
    author =    {Raj Sanmugam and Scott O. Bradner and Karl Rosenbrock and Dr. John C. Klensin},
    title =     {{3GPP-IETF Standardization Collaboration}},
    pagetotal = 7,
    year =      2001,
    month =     apr,
    day =       12,
    abstract =  {This document describes the standardization collaboration between 3GPP and IETF. This memo provides information for the Internet community.},
}