哈佛研究稱「五毛」年發5億留言影響輿論 環時駁斥「一知半解」 (Harvard study finds “Wumaos” post 500 million comments yearly to impact public opinion, Global Times rebuts: superficial knowledge)
Ming Pao, May 21, 2106
http://news.mingpao.com/ins/instantnews/web_tc/article/20160521/s00004/1463802049903