%% You should probably cite rfc7468 instead of this I-D.
@techreport{josefsson-pkix-textual-09,
    number =    {draft-josefsson-pkix-textual-09},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-josefsson-pkix-textual/09/},
    author =    {Simon Josefsson and Sean Leonard},
    title =     {{Textual Encodings of PKIX, PKCS, and CMS Structures}},
    pagetotal = 17,
    year =      2014,
    month =     dec,
    day =       13,
    abstract =  {This document describes and discusses the textual encodings of the Public-Key Infrastructure X.509 (PKIX), Public-Key Cryptography Standards (PKCS), and Cryptographic Message Syntax (CMS). The textual encodings are well-known, are implemented by several applications and libraries, and are widely deployed. This document is intended to articulate the de-facto rules that existing implementations operate by, and to give recommendations that will promote interoperability.},
}