%% You should probably cite rfc8968 instead of this I-D.
@techreport{ietf-babel-dtls-09,
    number =    {draft-ietf-babel-dtls-09},
    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-babel-dtls/09/},
    author =    {Antonin Décimo and David Schinazi and Juliusz Chroboczek},
    title =     {{Babel Routing Protocol over Datagram Transport Layer Security}},
    pagetotal = 10,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {The Babel Routing Protocol does not contain any means to authenticate neighbours or provide integrity or confidentiality for messages sent between them. This document specifies a mechanism to ensure these properties, using Datagram Transport Layer Security (DTLS).},
}