%% You should probably cite draft-ietf-ospf-yang instead of this I-D.
@techreport{yeung-netmod-ospf-00,
    number =    {draft-yeung-netmod-ospf-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-yeung-netmod-ospf/00/},
    author =    {Derek M. Yeung and Yingzhen Qu and Alexander Clemm},
    title =     {{Yang Data Model for OSPF Protocol}},
    pagetotal = 31,
    year =      2013,
    month =     oct,
    day =       21,
    abstract =  {This document defines a YANG data model that can be used to configure and manage OSPF.},
}