%% You should probably cite draft-ietf-i2rs-yang-network-topo instead of this I-D.
@techreport{clemm-i2rs-yang-network-topo-02,
    number =    {draft-clemm-i2rs-yang-network-topo-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-clemm-i2rs-yang-network-topo/02/},
    author =    {Alexander Clemm and Jan Medved and Robert Varga and Tony Tkacik and Nitin Bahadur and Hariharan Ananthakrishnan},
    title =     {{A Data Model for Network Topologies}},
    pagetotal = 20,
    year =      2014,
    month =     dec,
    day =       16,
    abstract =  {This document defines a YANG data model for network and service topologies.},
}