%% You should probably cite draft-ietf-teas-actn-vn-yang instead of this I-D.
@techreport{lee-teas-actn-vn-yang-04,
    number =    {draft-lee-teas-actn-vn-yang-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-lee-teas-actn-vn-yang/04/},
    author =    {Young Lee and Dhruv Dhody and Daniele Ceccarelli and Takuya Miyasaka and Peter Choongul Park and Bin Yeong Yoon},
    title =     {{A Yang Data Model for ACTN VN Operation}},
    pagetotal = 30,
    year =      2017,
    month =     jun,
    day =       1,
    abstract =  {This document provides a YANG data model for the Abstraction and Control of Traffic Engineered (TE) networks (ACTN) Virtual Network (VN) operation.},
}