Gregory R. Wheeler, Pedro Barahona. Why the Hardest Logic Puzzle Ever Cannot Be Solved in Less than Three Questions. J. Philosophical Logic, 41(2):493-503, 2012. [doi]
@article{WheelerB12,
title = {Why the Hardest Logic Puzzle Ever Cannot Be Solved in Less than Three Questions},
author = {Gregory R. Wheeler and Pedro Barahona},
year = {2012},
doi = {10.1007/s10992-011-9181-7},
url = {http://dx.doi.org/10.1007/s10992-011-9181-7},
researchr = {https://researchr.org/publication/WheelerB12},
cites = {0},
citedby = {0},
journal = {J. Philosophical Logic},
volume = {41},
number = {2},
pages = {493-503},
}