Peter C. Baldwin, “Nocturnal Habits and Dark Wisdom”: The American Response to Children in the Streets at Night, 1880–1930, Journal of Social History, Volume 35, Issue 3, Spring 2002, Pages 593–611, https://doi.org/10.1353/jsh.2002.0002
Mary-Louise Maynes, “Monsters at bedtime: managing fear in bedtime picture books for children.” en Humanit Soc Sci Commun 7, 63 (2020). https://doi.org/10.1057/s41599-020-00561-4
