VALBERG, A. Colour vision: From sensation to science (in Norwegian). Scandinavian Journal of Optometry and Visual Science, [S. l.], v. 3, n. 1, p. s. 1–6, 2010. DOI: 10.5384/sjovs.vol3i1p. Disponível em: https://sjovs.org/index.php/SJOVS/article/view/18. Acesso em: 17 jan. 2022.