Trammell, B., Ed., Welzl, M., Ed., Enghardt, R., Fairhurst, G., Kühlewind, M., Perkins, C., Tiesel, P., and T. Pauly, "An Abstract Application Programming Interface (API) for Transport Services", RFC 9622, DOI 10.17487/RFC9622, January 2025, <https://www.rfc-editor.org/info/rfc9622/>.