%% You should probably cite draft-ietf-sacm-coswid instead of this I-D.
@techreport{birkholz-sacm-coswid-00,
    number =    {draft-birkholz-sacm-coswid-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-birkholz-sacm-coswid/00/},
    author =    {Henk Birkholz and Jessica Fitzgerald-McKay and Charles Schmidt and David Waltermire},
    title =     {{Concise Software Identifiers}},
    pagetotal = 11,
    year =      2016,
    month =     mar,
    day =       21,
    abstract =  {This document defines a concise representation of ISO 19770-2:2015 Software Identifiers (SWID tags) that is interoperable with the XML schema definition of ISO 19770-2:2015.},
}