@misc{rfc7913,
    series =    {Request for Comments},
    number =    7913,
    howpublished =  {RFC 7913},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC7913},
    url =       {https://www.rfc-editor.org/info/rfc7913},
    author =    {Christer Holmberg},
    title =     {{P-Access-Network-Info ABNF Update}},
    pagetotal = 4,
    year =      2016,
    month =     jun,
    abstract =  {This document updates RFC 7315, by modifying the extension-access- info part of the P-Access-Network-Info header field Augmented Backus- Naur Form (ABNF), and by adding the following 'access-info' header field parameter values to the list of 'access-info' header field parameter values in the ABNF: 'operator-specific-GI' and 'utran-sai-3gpp'. The values are defined in the ABNF but are not included in the list.},
}