Douglas C. Engelbart. Correction Games that Teach the Fundamentals of Computer Operation. IEEE Transactions on Computers, 10(2):291, 1961. [doi]
@article{Engelbart61a,
title = {Correction Games that Teach the Fundamentals of Computer Operation},
author = {Douglas C. Engelbart},
year = {1961},
doi = {10.1109/TEC.1961.5219206},
url = {http://dx.doi.org/10.1109/TEC.1961.5219206},
researchr = {https://researchr.org/publication/Engelbart61a},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Computers},
volume = {10},
number = {2},
pages = {291},
}