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

Horta R, Aguiar P, Silva P., Monteiro D., Amarante JM. Facial disfigurement: Restoration of facial dynamics in a patient with concomitant facial paralysis and blindness. Journal of Reconstructive Microsurgery. 2014;30:207-210.Edit

Silva P., Duarte R, Sampaio J, Aguiar P, Davids K, Araújo D, et al. Field dimension and skill level constrain team tactical behaviours in small-sided and conditioned games in football. Journal of sports sciences. 2014;32:1888-1896.Edit