@misc{rfc7557,
    series =    {Request for Comments},
    number =    7557,
    howpublished =  {RFC 7557},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC7557},
    url =       {https://www.rfc-editor.org/info/rfc7557},
    author =    {Juliusz Chroboczek},
    title =     {{Extension Mechanism for the Babel Routing Protocol}},
    pagetotal = 11,
    year =      2015,
    month =     may,
    abstract =  {This document defines the encoding of extensions to the Babel routing protocol, as specified in RFC 6126.},
}