Ferreira M, Rocha C. “There is no sun without shadows”: Virtues, impasses and limitations in documentary research on childhood and its education in Portugal. Educação (Porto Alegre, Online) [Internet]. 2020 Dec. 31 [cited 2024 Jul. 17];43(3):e37489. Available from: https://revistaseletronicas.pucrs.br/ojs/index.php/faced/article/view/37489