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São Paulo Journal of Mathematical Sciences > 2019 > 13 > 1 > 195-247
International Journal of Economic Theory > 14 > 1 > 61 - 69
Neural Computing and Applications > 2018 > 30 > 11 > 3317-3326
Journal of Algebra > 2015 > 426 > Complete > 137-187
Advances in Mathematics > 2014 > 252 > Complete > 748-804
Journal of Algebra > 2008 > 320 > 5 > 1771-1813
Journal of Algebra > 2004 > 274 > 1 > 309-334
Bulletin of the Brazilian Mathematical Society, New Series > 2004 > 35 > 2 > 281-289