HOUSECROFT, Catherine E. The Colour Violet: Chemistry or Physics? Chemical Education. CHIMIA, [S. l.], v. 73, n. 9, p. 760, 2019. DOI: 10.2533/chimia.2019.760. Disponível em: https://www.chimia.ch/chimia/article/view/2019_760. Acesso em: 9 apr. 2025.