Thesis

• Gouveia, M. J.;  (1993) Teorias de Dualidade Dissertação de Mestrado em Matemática (Álgebra), Faculdade de Ciências, Universidade de Lisboa, Portugal.

Edition of Books

• André, Jorge M.; Branco, Mário J. J.; Fernandes, Vítor Hugo; Fountain, John; Gomes, Gracinda M. S.; Meakin, John (2007) Semigroups and Formal Languages, (Proceedings - International Conference on Semigroups and Languages in honour of the 65th birthday of D.B. McAlister), Lisboa, July 2005 World Scientific.

• Facchini, Alberto; Fuller, Kent; Ringel, Claus M.; Santa-Clara, Catarina (2006) Algebras, Rings and their Representations, Proceedings of the International Conference on Algebras, Modules and Rings, Lisbon, Portugal 14 - 18 July 2003 World Scientific.

• Araújo, Isabel M.; Branco, Mário J. J.; Fernandes, Vítor Hugo; Gomes, Gracinda M. S. (2004) Proceedings of the Workshop on Semigroups and Languages (Lisbon 2002) World Scientific.

• Gomes, Gracinda M. S.; Pin, J.-E.; Silva, P.V. (2002) Semigroups, Algorithms, Automata and Languages World Scientific.

• Almeida, Jorge; Gomes, Gracinda M. S.; Silva, Pedro V. (1996) Semigroups, Automata and Languages World Scientific.