| 2021 | ECSQARU | An Abstract Argumentation and Logic Programming Comparison Based on 5-Valued Labellings. | Samy S, Joo F. L. Alcntara |
| 2021 | ECSQARU | Assumption-Based Argumentation Is Logic Programming with Projection. | Samy S, Joo F. L. Alcntara |
| 2021 | ECSQARU | A Paraconsistent Approach to Deal with Epistemic Inconsistencies in Argumentation. | Rafael Silva, Joo F. L. Alcntara |
| 2020 | COMMA | Semantics Hierarchy in Preference-Based Argumentation Frameworks. | Rafael Silva, Samy S, Joo F. L. Alcntara |
| 2019 | SAC | Interpretations and models for assumption-based argumentation. | Samy S, Joo F. L. Alcntara |
| 2018 | KR | Propositional Belief Merging with OWA Operators. | Henrique Viana, Joo F. L. Alcntara |
| 2018 | SAC | An infinite-valued grounded labelling for abstract argumentation frameworks. | Joo F. L. Alcntara, Samy S |
| 2016 | EUMAS | Propositional Belief Merging with T-conorms. | Henrique Viana, Joo F. L. Alcntara |
| 2016 | EUMAS | Sufficientarian Propositional Belief Merging. | Henrique Viana, Joo F. L. Alcntara |
| 2014 | EUMAS | Priority-Based Merging Operator Without Distance Measures. | Henrique Viana, Joo F. L. Alcntara |
| 2013 | ECSQARU | On the Equivalence between Logic Programming Semantics and Argumentation Semantics. | Martin Caminada, Samy S, Joo F. L. Alcntara |
| 2013 | LPNMR | Preference Handling for Belief-Based Rational Decisions. | Samy S, Joo F. L. Alcntara |
| 2012 | AAMAS | Cooperative dialogues with conditional arguments. | Samy S, Joo F. L. Alcntara |
| 2005 | ICLP | A Well-Founded Semantics with Disjunction. | Joo F. L. Alcntara, Carlos Viegas Damsio, Lus Moniz Pereira |
| 2004 | ECAI | A Declarative Characterization of Disjunctive Paraconsistent Answer Sets. | Joo F. L. Alcntara, Carlos Viegas Damsio, Lus Moniz Pereira |
| 2002 | JELIA | Paraconsistent Logic Programs. | Joo F. L. Alcntara, Carlos Viegas Damsio, Lus Moniz Pereira |