%% You should probably cite draft-mlichvar-ntp-correction-field-04 instead of this revision.
@techreport{mlichvar-ntp-correction-field-01,
    number =    {draft-mlichvar-ntp-correction-field-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-mlichvar-ntp-correction-field/01/},
    author =    {Miroslav Lichvar},
    title =     {{NTP Correction Field}},
    pagetotal = 7,
    year =      2017,
    month =     dec,
    day =       7,
    abstract =  {This document specifies an extension field for the Network Time Protocol (NTP) which allows network devices such as switches and routers to modify NTP packets with corrections to improve accuracy of the synchronization in the network.},
}