Thomas Quint, Martin Shubik. A theorem on the number of Nash equilibria in a bimatrix game. Int. J. Game Theory, 26(3):353-359, 1997. [doi]
@article{QuintS97,
title = {A theorem on the number of Nash equilibria in a bimatrix game},
author = {Thomas Quint and Martin Shubik},
year = {1997},
doi = {10.1007/BF01263276},
url = {http://dx.doi.org/10.1007/BF01263276},
researchr = {https://researchr.org/publication/QuintS97},
cites = {0},
citedby = {0},
journal = {Int. J. Game Theory},
volume = {26},
number = {3},
pages = {353-359},
}