%% You should probably cite rfc7749 instead of this I-D.
@techreport{iab-xml2rfcv2-02,
    number =    {draft-iab-xml2rfcv2-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-iab-xml2rfcv2/02/},
    author =    {Julian Reschke},
    title =     {{The "xml2rfc" Version 2 Vocabulary}},
    pagetotal = 76,
    year =      2015,
    month =     sep,
    day =       16,
    abstract =  {This document defines the "xml2rfc" version 2 vocabulary: an XML-based language used for writing RFCs and Internet-Drafts. Version 2 represents the state of the vocabulary (as implemented by several tools and as used by the RFC Editor) around 2014. This document obsoletes RFC 2629.},
}