@misc{rfc8409,
    series =    {Request for Comments},
    number =    8409,
    howpublished =  {RFC 8409},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8409},
    url =       {https://www.rfc-editor.org/info/rfc8409},
    author =    {Ian Young and Leif Johansson and Scott Cantor},
    title =     {{The Entity Category Security Assertion Markup Language (SAML) Attribute Types}},
    pagetotal = 12,
    year =      2018,
    month =     aug,
    abstract =  {This document describes two SAML entity attributes: one that can be used to assign category membership semantics to an entity and another for use in claiming interoperation with or support for entities in such categories. This document is a product of the working group process of the Research and Education FEDerations (REFEDS) group.},
}