Silva PV. Clifford monoid presentations. Math. Proc. Cambridge Philos. Soc.. 1992;111:445-454.

Silva PV. Fixed points of endomorphisms over special confluent rewriting systems. Monatsh. Math.. 2010;161:417-447.

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

Silva MC, Mirra ME, Ribeiro MF. Dicionário de Matemática Elementar, de Stella Baruk. Vol 2 Edições Afrontamento 2005.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 MC, Estrada MF. José Anastácio da Cunha e a Álgebra do seu tempo. CMUM ed. Portugal, Braga: Universidade do Minho. Centro de Matemática (CMAT) 2005.Edit

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

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

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

Silva P., Aguiar P, Duarte R, Davids K, Araújo D, Garganta J. Effects of pitch size and skill level on tactical behaviours of Association Football players during small-sided and conditioned games. International Journal of Sports Science & Coaching. 2014;9:993-1006.Edit

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

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

[2016-13] Silva PV, Soares F. Local finiteness for Green relations in (I-)semigroup varieties .Edit

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

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

Simões Md, Oliveira PM, Costa AP. Análise do desempenho de um cruzamento regulado por controlo semi-actuado 2006.Edit

Simões M., Costa A., Oliveira PM. Simulation Based Design of Optimal Phasing Plans for an Intersection with Semi-Actuated Signals. In: Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing.; 2009. 2. 246.Edit

Simões Md, de Oliveira PM, Costa AP. Análise de filas de espera com pausas do servidor para controle de tráfego 2005.Edit

Simões Md, de Oliveira PM, Costa AP. Modelação do atraso dos veículos em tráfego urbano usando modelos de efeitos mistos 2003.Edit

Simões ML, Milheiro-Oliveira P. Modelação do atraso dos veículos em cruzamentos semaforizados .Edit

Simões Md, Oliveira PM, Costa AP. Queues with server vacations in urban traffic control. In: International Symposium on Applied Stochastic Models and Data Analysis (ASMDA 2005).; 2005. 1. p. 1181-1188p. Edit

Simões L, Costa AP, de Oliveira PM. Simulation and Modelling of Traffic Movements at Semi-Actuated Signalised Intersections. In: 10th International Conference on Computers in Urban Planning and Urban Management.; 2007. 1. 10.Edit

Simões Md, de Oliveira PM, Costa AP. Análise Probabilística do fluxo de tráfego num cruzamento semi-actuado 2002.Edit

Simões L., Oliveira PM. Modeling and Simulation of Traffic Movements at Semi-Actuated Signalized Intersections. Journal of Transportation Engineering. 2010;136:554-564.Edit

Simões L, de Oliveira PM, Costa AP. Simulation and modelling of vehicule’s delay at semi-actuated signalized intersections. In: Compstat’2004 symposium.; 2004. 1. p. 1823-1830p. Edit