Hagen, Lene, Stuart J. Gilson, and Rigmor C. Baraas. “Vision Status and Reading Test Results in Norwegian Adolescents”. Scandinavian Journal of Optometry and Visual Science 13, no. 2 (December 31, 2020): 2–7. Accessed March 1, 2024. https://open.lnu.se/index.php/sjovs/article/view/3474.