%% You should probably cite rfc3125 instead of this I-D.
@techreport{ietf-smime-espolicies-01,
    number =    {draft-ietf-smime-espolicies-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-smime-espolicies/01/},
    author =    {Nick Pope and Denis Pinkas and John Ross},
    title =     {{Electronic Signature Policies}},
    pagetotal = 44,
    year =      2001,
    month =     apr,
    day =       8,
    abstract =  {This document defines signature policies for electronic signatures. A signature policy is a set of rules for the creation and validation of an electronic signature, under which the validity of signature can be determined. A given legal/contractual context may recognize a particular signature policy as meeting its requirements. This memo defines an Experimental Protocol for the Internet community.},
}