You can find my theremin paper:
Oliver, J. “Theremin in the Press: Construing Electrical Music” 2012. Proceedings of the EMS Network Conference, Stockholm, Sweden. 2012.
If you’re interested in finding out more about theremin himself you can check out Albert Glinsky’s book: “Theremin, Ether Music, and Espionage”.
There is also a documentary called “Theremin:An Electronic Odissey”. It is available on Netflix in case you’re interested.