Louis W. Shapiro. Voting blocks, reluctant functions, and a formula of Hurwitz. Discrete Mathematics, 87(3):318-322, 1991. [doi]
@article{Shapiro91,
title = {Voting blocks, reluctant functions, and a formula of Hurwitz},
author = {Louis W. Shapiro},
year = {1991},
doi = {10.1016/0012-365X(91)90142-O},
url = {http://dx.doi.org/10.1016/0012-365X(91)90142-O},
researchr = {https://researchr.org/publication/Shapiro91},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {87},
number = {3},
pages = {318-322},
}