[1] Using OAuth 2.0 for Web Server Applications - Google Accounts Authentication and Authorization — Google Developers (2014-12-05 11:52:25 +09:00 版) <https://developers.google.com/accounts/docs/OAuth2WebServer#incrementalAuth>

[2] Using OAuth 2.0 for Installed Applications - Google Accounts Authentication and Authorization — Google Developers (2014-12-05 11:52:26 +09:00 版) <https://developers.google.com/accounts/docs/OAuth2InstalledApp#incrementalAuth>

[3] Using OAuth 2.0 for Client-side Applications - Google Accounts Authentication and Authorization — Google Developers (2014-11-15 06:31:32 +09:00 版) <https://developers.google.com/accounts/docs/OAuth2UserAgent#incrementalAuth>