%% You should probably cite draft-ietf-ipsecme-g-ikev2 instead of this I-D.
@techreport{yeung-g-ikev2-04,
    number =    {draft-yeung-g-ikev2-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-yeung-g-ikev2/04/},
    author =    {Sheela Rowles and Aldous Yeung and Paulina Tran and Yoav Nir},
    title =     {{Group Key Management using IKEv2}},
    pagetotal = 43,
    year =      2012,
    month =     mar,
    day =       11,
    abstract =  {This document presents a new group key distribution protocol. The protocol is in conformance with MSEC key management architecture it contains two components: member registration and group rekeying, both downloading group security associations from the Group Controller Key Server to a member of the group. The new protocol is similar to IKEv2 in message and payload formats as well as message semantics.},
}