DEES, E. W.; BARAAS, R. C. Coloured filters will not give red-green colour deficient observers normal colour vision. Scandinavian Journal of Optometry and Visual Science, [S. l.], v. 4, n. 2, p. 6–13, 2011. DOI: 10.5384/sjovs.vol4i2p6-13. Disponível em: https://sjovs.org/index.php/SJOVS/article/view/22. Acesso em: 17 jan. 2022.