Endre Boros, Ondrej Cepek. On perfect 0, +/- 1 matrices:::, :::. Discrete Mathematics, 165-166:81-100, 1997. [doi]
@article{BorosC97,
title = {On perfect 0, +/- 1 matrices:::, :::},
author = {Endre Boros and Ondrej Cepek},
year = {1997},
doi = {10.1016/S0012-365X(96)00163-X},
url = {http://dx.doi.org/10.1016/S0012-365X(96)00163-X},
researchr = {https://researchr.org/publication/BorosC97},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {165-166},
pages = {81-100},
}