Cleminson, Richard. “Iberian eugenics? Cross-overs and contrasts between Spanish and Portuguese eugenics, 1930-1950”. Dynamis: Acta Hispanica ad Medicinae Scientiarumque Historiam Illustrandam, vol.VOL 37, no. 1, pp. 89-110, https://raco.cat/index.php/Dynamis/article/view/318874.