Dylan Shepardson, Craig A. Tovey. Smallest tournaments not realizable by \frac23-majority voting. Social Choice and Welfare, 33(3):495-503, 2009. [doi]
@article{ShepardsonT09,
title = {Smallest tournaments not realizable by \frac23-majority voting},
author = {Dylan Shepardson and Craig A. Tovey},
year = {2009},
doi = {10.1007/s00355-009-0375-7},
url = {http://dx.doi.org/10.1007/s00355-009-0375-7},
researchr = {https://researchr.org/publication/ShepardsonT09},
cites = {0},
citedby = {0},
journal = {Social Choice and Welfare},
volume = {33},
number = {3},
pages = {495-503},
}