%% You should probably cite draft-ietf-kitten-scram-2fa instead of this I-D.
@techreport{melnikov-scram-2fa-02,
    number =    {draft-melnikov-scram-2fa-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-melnikov-scram-2fa/02/},
    author =    {Alexey Melnikov},
    title =     {{Extensions to Salted Challenge Response (SCRAM) for 2 factor authentication}},
    pagetotal = 6,
    year =      2020,
    month =     oct,
    day =       29,
    abstract =  {This specification describes an extension to family of Simple Authentication and Security Layer (SASL; RFC 4422) authentication mechanisms called the Salted Challenge Response Authentication Mechanism (SCRAM), which provides support for 2 factor authentication. This specification also gives an example how TOTP (RFC 6238) can be used as the second factor.},
}