%% You should probably cite rfc7077 instead of this I-D.
@techreport{ietf-netext-update-notifications-00,
    number =    {draft-ietf-netext-update-notifications-00},
    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-netext-update-notifications/00/},
    author =    {Suresh Krishnan and Sri Gundavelli and Marco Liebsch and Hidetoshi Yokota and Jouni Korhonen},
    title =     {{Update Notifications for Proxy Mobile IPv6}},
    pagetotal = 8,
    year =      2012,
    month =     nov,
    day =       30,
    abstract =  {Proxy Mobile IPv6 (PMIPv6) is a network based mobility management protocol that enables IP mobility for a host without requiring its participation in any mobility-related signaling. This document proposes a mechanism for the Local Mobility Anchor to asynchronously notify the Mobile Access Gateway about changes related to the mobility session.},
}