1. 1994. Xwrits. (Aug 1994). http://www.lcdf.org/xwrits/ 1994. Xwrits. (Aug 1994). http://www.lcdf.org/xwrits/
2. 2002. Workrave. (Sep 2002). http://www.workrave.org/ 2002. Workrave. (Sep 2002). http://www.workrave.org/
3. 2016. AppleScript Language Guide. (Jan 2016). https://developer.apple.com/library/archive/documentation/AppleScript/Conceptual/AppleScriptLangGuide/introduction/ASLR_intro.html 2016. AppleScript Language Guide. (Jan 2016). https://developer.apple.com/library/archive/documentation/AppleScript/Conceptual/AppleScriptLangGuide/introduction/ASLR_intro.html
4. 2018. PSP60-082A-103B1 - Potentiometer 10 kg 500 mW ±20% Pro Audio PSP Series Linear. (Jan 2018). https://uk.farnell.com/bourns/psp60-082a-103b1/motorized-slide-pot-10k-20-0--5/dp/2773948 2018. PSP60-082A-103B1 - Potentiometer 10 kg 500 mW ±20% Pro Audio PSP Series Linear. (Jan 2018). https://uk.farnell.com/bourns/psp60-082a-103b1/motorized-slide-pot-10k-20-0--5/dp/2773948
5. 2018. Repetitive strain injury (RSI). (Nov 2018). https://www.nhs.uk/conditions/repetitive-strain-injury-rsi/ 2018. Repetitive strain injury (RSI). (Nov 2018). https://www.nhs.uk/conditions/repetitive-strain-injury-rsi/