%% You should probably cite rfc9249 instead of this I-D.
@techreport{ietf-ntp-yang-data-model-02,
    number =    {draft-ietf-ntp-yang-data-model-02},
    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-yang-data-model/02/},
    author =    {Nan Wu and ANIL KUMAR S N and Yi Zhao and Dhruv Dhody and Ankit kumar Sinha},
    title =     {{A YANG Data Model for NTP}},
    pagetotal = 45,
    year =      2018,
    month =     mar,
    day =       5,
    abstract =  {This document defines a YANG data model for Network Time Protocol (NTP) implementations. The data model includes configuration data and state data.},
}