%% You should probably cite rfc7512 instead of this I-D.
@techreport{pechanec-pkcs11uri-21,
    number =    {draft-pechanec-pkcs11uri-21},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-pechanec-pkcs11uri/21/},
    author =    {Jan Pechanec and Darren Moffat},
    title =     {{The PKCS \#11 URI Scheme}},
    pagetotal = 20,
    year =      2015,
    month =     feb,
    day =       13,
    abstract =  {This memo specifies a PKCS \#11 Uniform Resource Identifier (URI) Scheme for identifying PKCS \#11 objects stored in PKCS \#11 tokens and also for identifying PKCS \#11 tokens, slots, or libraries. The URI scheme is based on how PKCS \#11 objects, tokens, slots, and libraries are identified in "PKCS \#11 v2.20: Cryptographic Token Interface Standard".},
}