[1] draft-ietf-appsawg-webfinger-02 - WebFinger ( (2014-10-17 09:14:02 +09:00 版)) <https://tools.ietf.org/html/draft-ietf-appsawg-webfinger-02#section-6>
[3] RFC 7566 - Enumservice Registration for 'acct' URI (2015-06-26 08:06:22 +09:00 版) <https://tools.ietf.org/html/rfc7566>