Episode 32: Chinese Tickle Torture?
https://martinifisher.com/2017/04/23/titillatio-a-brief-mythology-ancient-history-and-philosophy-of-tickling/ 
C.R.  Harris 2013 'Tickling', in the Encyclopedia of Human Behaviour 2nd ed. -  contains the amazing pretend robot tickling experiment. 
Racist tickle porn site: http://www.ticklingforum.com/archive/index.php/t-112908.html 
Heinz Heger, 1994 The Men with the Pink Triangle.
Pictures of Death By 1000 Cuts and other info about actual tortures in China: https://www.chinasage.info/torture.htm 
Some  alleged examples of people being tickled to death/as a torture, most of  which are nonense, but does include the Man Tickled Wife Mad text:  https://groups.google.com/forum/#!msg/alt.multimedia.tk/viHVc2KzwZk/gOoVL6aEwJYJ  
Maxim Korolkov, 2011 ‘Arguing about Law: Interrogation  Procedure under the Qin and former Han Dynasties” Etudes Chinoises 30. -  Chinese torture documentation
Jonathan Spence, 1998. The Chan’s Great Continent: China in Western Minds. 
Nancy Park, 2008. Imperial Chinese Justice and the Law of Torture. Late Imperial China, 29 (2) 37-67.Nancy Park, 2008. Imperial Chinese Justice and the Law of Torture. Late Imperial China, 29 (2) 37-67.
D. Jones. The Function of China in Western Social and Political Thought. 
James Williams, 1893. The Function of Torture on Roman Law II. Law Review 5th Series 64.
Gavin  Yamey. Review of Torture:European Instruments of Torture and Capital  Punishment from the Middle Ages to the Present. BMJ 11th August 2001.