Analysis of information sources in references of the Wikipedia article "美国之音" in Chinese language version.
In 1976, President Gerald Ford signed the VOA's public charter, safeguarding the organisation's editorial independence, and by 1994, the BBG, with oversight over non-military broadcasting, was established.
<ref>
标签用不同内容定义了多次In 1976, President Gerald Ford signed the VOA's public charter, safeguarding the organisation's editorial independence, and by 1994, the BBG, with oversight over non-military broadcasting, was established.
<ref>
标签用不同内容定义了多次