Lees, Helen E. “Hanging Around, Pottering About, Chilling Out: Lessons on Silence and Well-Being from Summerhill School”. Revista Hipótese, translated by Linda Catarina Gualda, vol. 4, no. 1, Jan. 2018, pp. 194-1, https://revistahipotese.editoraiberoamericana.com/revista/article/view/310.