Hysing, Mari, and Børge Sivertsen. “The Psychometric Properties of the Norwegian Version of Children’s Sleep Habits Questionnaire (CSHQ)”. PsykTestBarn 3, no. 2 (September 11, 2013): 1–5. Accessed August 24, 2026. https://septentrio.uit.no/index.php/psyktestbarn/article/view/7514.