Free Profinite Semigroups Over Some Classes of Semigroups Locally in D(G). - José Carlos Costa (Int. J. Algebra Comput., 2000)

Biinfinite words with maximal recurrent unbordered factors. - José Carlos Costa (Theor. Comput. Sci., 2003)

Tameness of The Pseudovariety Ls1. - José Carlos Costa; Maria Lurdes Azevedo Teixeira (Int. J. Algebra Comput., 2004)

On bases of identities for the omega-variety generated by locally testable semigroups. - José Carlos Costa; Conceição Veloso Nogueira (Theor. Comput. Sci., 2008)

Complete Reducibility of the Pseudovariety Ls1. - José Carlos Costa; Conceição Veloso Nogueira (Int. J. Algebra Comput., 2009)

Definition and Validation of Metrics for ITSM Process Models. - Fernando Brito e Abreu; Raquel de Bragança V. da Porciúncula; Jorge Manuel Freitas; José Carlos Costa (QUATIC, 2010)

Tameness of Joins involving the Pseudovariety of Local Semilattices. - José Carlos Costa; Conceição Veloso Nogueira (Int. J. Algebra Comput., 2012)

Canonical forms for free κ-semigroups. - José Carlos Costa (Discret. Math. Theor. Comput. Sci., 2014)

Iterated periodicity over finite aperiodic semigroups. - Jorge Almeida 001; José Carlos Costa; Marc Zeitoun (Eur. J. Comb., 2014)

McCammond's normal forms for free aperiodic semigroups revisited. - Jorge Almeida 001; José Carlos Costa; Marc Zeitoun (LMS J. Comput. Math., 2015)

Factoriality and the Pin-Reutenauer procedure. - Jorge Almeida 001; José Carlos Costa; Marc Zeitoun (Discret. Math. Theor. Comput. Sci., 2016)

Pointlike reducibility of pseudovarieties of the form V ∗D. - José Carlos Costa; Conceição Veloso Nogueira; Maria Lurdes Teixeira (Int. J. Algebra Comput., 2016)

The linear nature of pseudowords. - Jorge Almeida 001; Alfredo Costa; José Carlos Costa; Marc Zeitoun (CoRR, 2017)

On κ-reducibility of pseudovarieties of the form V ∗D. - José Carlos Costa; Maria Lurdes Teixeira; Conceição Veloso Nogueira (Int. J. Algebra Comput., 2017)

Recognizing pro-R closures of regular languages. - Jorge Almeida 001; José Carlos Costa; Marc Zeitoun (CoRR, 2019)

The Overlap Gap Between Left-Infinite and Right-Infinite Words. - José Carlos Costa; Conceição Veloso Nogueira; Maria Lurdes Teixeira (Int. J. Found. Comput. Sci., 2022)