共谍案从何说起？王炳忠与周泓旭之间的五个关键字 (Communist spies in Taiwan: The story of Wang Ping-chung and Zhou Hongxu) The Initium, January 18, 2018 https://theinitium.com/article/20180118-taiwan-zhou-hong-xu-and-wang-ping-chung-in-spy-probe/