13名律师致联名信关注“上海警方刑拘争取异地高考权学生家长”事件 (13  Lawyers Issue Open Letter to Shanghai Govt Calling for Shanghai to Relax Its  Protectionist National Exam Policy and Honor Citizens' Basic Rights)
  Radio Free Asia, December 19, 2012
  http://www.rfa.org/mandarin/yataibaodao/yl-12192012155635.html