Philip D. Welch. Games for truth. Bulletin of Symbolic Logic, 15(4):410-427, 2009. [doi]
@article{Welch09-2, title = {Games for truth}, author = {Philip D. Welch}, year = {2009}, url = {http://www.math.ucla.edu/~asl/bsl/1504/1504-002.ps}, researchr = {https://researchr.org/publication/Welch09-2}, cites = {0}, citedby = {0}, journal = {Bulletin of Symbolic Logic}, volume = {15}, number = {4}, pages = {410-427}, }