%% You should probably cite draft-ietf-ntp-alternative-port-02 instead of this revision.
@techreport{ietf-ntp-alternative-port-01,
    number =    {draft-ietf-ntp-alternative-port-01},
    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-ntp-alternative-port/01/},
    author =    {Miroslav Lichvar},
    title =     {{Alternative NTP port}},
    pagetotal = 6,
    year =      2021,
    month =     feb,
    day =       15,
    abstract =  {This document updates RFC 5905 to specify an alternative port for the Network Time Protocol (NTP) which is restricted to NTP messages that do not allow traffic amplification.},
}