Luís Oliveira
Faculdade de Ciências da Universidade do Porto
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Semigroup Forum | 2021 | article
Monatshefte Fur Mathematik | 2017 | article
Studia Scientiarum Mathematicarum Hungarica | 2013 | article
Studia Scientiarum Mathematicarum Hungarica | 2008 | article
Communications in Algebra | 2008 | article