%% You should probably cite rfc8169 instead of this I-D.
@techreport{ietf-mpls-residence-time-14,
    number =    {draft-ietf-mpls-residence-time-14},
    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-mpls-residence-time/14/},
    author =    {Greg Mirsky and Stefano Ruffini and Eric Gray and John Drake and Stewart Bryant and Sasha Vainshtein},
    title =     {{Residence Time Measurement in MPLS network}},
    pagetotal = 28,
    year =      2017,
    month =     feb,
    day =       22,
    abstract =  {This document specifies a new Generic Associated Channel for Residence Time Measurement and describes how it can be used by time synchronization protocols within a MPLS domain. Residence time is the variable part of propagation delay of timing and synchronization messages and knowing what this delay is for each message allows for a more accurate determination of the delay to be taken into account in applying the value included in a Precision Time Protocol event message.},
}