深圳维权人士杨林失踪 各界联署要求当局公开真相 (Activist Yang Lin missing for two months, supporters urge government to come clean and ratify enforced disappearance convention)
Radio Free Asia, August 6, 2013
http://www.rfa.org/mandarin/yataibaodao/renquanfazhi/sy1-08062013104402.html
