%% You should probably cite draft-santesson-svt instead of this I-D.
@techreport{santesson-svt-xml-02,
    number =    {draft-santesson-svt-xml-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-santesson-svt-xml/02/},
    author =    {Stefan Santesson and Russ Housley},
    title =     {{XML Signature Validation Token}},
    pagetotal = 8,
    year =      2021,
    month =     sep,
    day =       3,
    abstract =  {This document defines a XML profile for the Signature Validation Token defined in {[}SVT{]}.},
}