Fonseca, António Castro, Marta Oliveira, and José Tomás da Silva. “The Only Children’s Transition to Adulthood: Brief Research Report in Their Academic and Professional Achievement”. Revista Portuguesa de Pedagogia0, no. 51-2 (December 21, 2017): 99-114. Accessed July 12, 2025. https://impactum-journals.uc.pt/rppedagogia/article/view/1647-8614_51-2_5.