@misc{rfc5221,
    series =    {Request for Comments},
    number =    5221,
    howpublished =  {RFC 5221},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC5221},
    url =       {https://www.rfc-editor.org/info/rfc5221},
    author =    {Tomohiro Fujisaki and Ruri Hiromi and Ken-ichi Kanayama and Arifumi Matsumoto},
    title =     {{Requirements for Address Selection Mechanisms}},
    pagetotal = 7,
    year =      2008,
    month =     jul,
    abstract =  {There are some problematic cases when using the default address selection mechanism that RFC 3484 defines. This document describes additional requirements that operate with RFC 3484 to solve the problems. This memo provides information for the Internet community.},
}