ZX81 Academic and Research related articles!
Most of these are "Locked", so you can only read the abstracts, which gives you the idea. You can pay to get access if you want.
A few are "Open Access", like the Quicksilva article I posted yesterday.
Here's another one
https://www.tandfonline.com/doi/full/10 ... 16.1190440
Bugaboo: A Spanish case of circulation and co-production of video games
Ignasi Meda-Calvet | Alex Wade (Reviewing Editor)