%% You should probably cite rfc6960 instead of this I-D.
@techreport{ietf-pkix-rfc2560bis-17,
    number =    {draft-ietf-pkix-rfc2560bis-17},
    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-pkix-rfc2560bis/17/},
    author =    {Stefan Santesson and Michael Myers and Rich Ankney and Ambarish Malpani and Slava Galperin and Dr. Carlisle Adams},
    title =     {{X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP}},
    pagetotal = 44,
    year =      2013,
    month =     apr,
    day =       10,
    abstract =  {This document specifies a protocol useful in determining the current status of a digital certificate without requiring CRLs. Additional mechanisms addressing PKIX operational requirements are specified in separate documents. This document obsoletes RFC 2560 and RFC 6277, and updates RFC 5912.},
}