%% You should probably cite rfc7564 instead of this I-D.
@techreport{ietf-precis-framework-02,
    number =    {draft-ietf-precis-framework-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-ietf-precis-framework/02/},
    author =    {Peter Saint-Andre and Marc Blanchet},
    title =     {{PRECIS Framework: Handling Internationalized Strings in Protocols}},
    pagetotal = 31,
    year =      2012,
    month =     mar,
    day =       12,
    abstract =  {Application protocols using Unicode code points in protocol strings need to prepare such strings in order to perform comparison operations (e.g., for purposes of authentication or authorization). This document defines a framework enabling application protocols to use various classes of strings in a way that depends on the properties of Unicode code points. A specification using this framework can either directly use the base string classes or can subclass the base string classes as needed. This framework uses an approach similar to the revised internationalized domain names in applications (IDNA) technology (RFC 5890, RFC 5891, RFC 5892, RFC 5893, RFC 5894) and thus adheres to the high-level design goals described in RFC 4690, albeit for application technologies other than the Domain Name System (DNS). This document obsoletes the previous framework, named Stringprep, as defined in RFC 3454.},
}