Silva PV. Groups and automata: a perfect match. J. Automata Lang. Combin.. 2012;17(2-4):277-292.

Silva PV. The word problem for nilpotent inverse monoids. Semigroup Forum. 1995;51:285-293.

Silva PV. Fixed points of endomorphisms of certain free products. RAIRO Theor. Inform. Appl.. 2012;46:165-179.

Silva MC. Equações no «Libro de Algebra» de Pedro Nunes. Vol 68 APM 2002.Edit

[2006-21] Silva M. The algebraic contents of Bento Fernandes’ Tratado da arte de arismetica (1555) .

[2010-14] Silva PV. Finite idempotent inverse monoid presentations .

Silva PV. Fixed points of endomorphisms of virtually free groups. Pacific J. Math.. 2013;263:207-240.

[2015-41] M. Silva C. On the circulation of algebraic knowledge in the Iberian península:the sources of Pérez de Moya's Tratado de Arithmetica (1573) .Edit

[2009-10] Silva PV. Fixed points of endomorphisms over special confluent rewriting systems .

[2012-10] Silva PV. Fixed points of endomorphisms of virtually free groups .

Silva PV. A note on primeness of semigroup rings. Proc. Roy. Soc. Edinburgh Sect. A. 1992;120:191-197.

Silva PV. An application of first-order logic to the study of recognizable languages. Internat. J. Algebra Comput.. 2004;14:785-799.

[2010-15] Silva PV. Fixed points of endomorphisms of certain free products .

Silva MC. Contribuição para o estudo do manuscrito Arte de Marear de Juan Pérez de Moya. LLULL. 2012;35(76):351-379.Edit

Silva PV. On unique factorization semilattices. Discuss. Math. Gen. Algebra Appl.. 2000;20:97-120.

[2014-29] Silva PV, Soares F. Howson’s property for semidirect products of semilattices by groups .Edit

Silva PV. Conjugacy and transposition for inverse monoid presentations. Internat. J. Algebra Comput.. 1996;6:607-622.

Silva MC, Duarte AL, de Sá CC. Francisco Gomes Teixeira. CIM Bulletin. 2004;16:21-23.Edit

Silva PV. A note on pure and $p$-pure languages. Acta Inform.. 2003;39:579-595.

Silva P., Weil P. On finite-index extensions of subgroups of free groups. J. Group Theory. 2010;13:365-381.Edit

Silva PV, Soler-Escrivà X, Ventura E. Finite automata for Schreier graphs of virtually free groups. J. Group Theory. 2016;19:25-54.Edit

Silva PV. Trees associated to inverse monoid presentations. J. Pure Appl. Algebra. 2001;165:307-335.

[2015-26] Silva MC, Magalhães ML. Vida e Obra de Luis Inacio Woodhouse (1857-1927) .Edit

[2008-23] Silva PV, Weil P. On finite-index extensions of subgroups of free groups .Edit

[2017-28] Silva PV, Zakharov A. On finitely generated submonoids of free groups .