%% You should probably cite draft-wu-idr-flowspec-yang-cfg instead of this I-D.
@techreport{wu-rtgwg-flowspec-yang-cfg-00,
    number =    {draft-wu-rtgwg-flowspec-yang-cfg-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-wu-rtgwg-flowspec-yang-cfg/00/},
    author =    {Nan Wu and Shunwan Zhuang},
    title =     {{A YANG Data Model for Flow Specification}},
    pagetotal = 22,
    year =      2015,
    month =     mar,
    day =       25,
    abstract =  {This document defines a YANG data model for Flow Specification implementations. The data model includes configuration data and state data.},
}