OJA, H.; SIRKIÄ, S.; ERIKSSON, J. Scatter Matrices and Independent Component Analysis. Austrian Journal of Statistics, [S. l.], v. 35, n. 2&3, p. 175–189, 2016. DOI: 10.17713/ajs.v35i2&3.364. Disponível em: https://www.ajs.or.at/index.php/ajs/article/view/vol35%2C%20no2%263%20-%207. Acesso em: 31 jan. 2023.