%% You should probably cite draft-ietf-ipsecme-ikev1-algo-to-historic instead of this I-D.
@techreport{pwouters-ikev1-ipsec-graveyard-00,
    number =    {draft-pwouters-ikev1-ipsec-graveyard-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-pwouters-ikev1-ipsec-graveyard/00/},
    author =    {Paul Wouters},
    title =     {{Deprecation of IKEv1 and obsoleted algorithms}},
    pagetotal = 6,
    year =      2019,
    month =     mar,
    day =       11,
    abstract =  {This document deprecates Internet Key Exchange version 1 (IKEv1) and additionally deprecates a number of algorithms that are obsolete.},
}