DUJMOVIC, Nicholas. Two CIA Prisoners in China, 1952–73 [online]. Central Intelligence Agency, 2007, [cit. 2020-05-30]. Dostupné online. Archivované 2020-11-01 z originálu.
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ANDREWS, Evan. How Ping-Pong Diplomacy Thawed the Cold War [online]. 2018, [cit. 2020-05-30]. Dostupné online.
web.archive.org
DUJMOVIC, Nicholas. Two CIA Prisoners in China, 1952–73 [online]. Central Intelligence Agency, 2007, [cit. 2020-05-30]. Dostupné online. Archivované 2020-11-01 z originálu.