NOYCE, G. L.; K, M. B.; SOLLICH, P. Quantifying Shapes: Mathematical Techniques for Analysing Visual Representations of Sound and Music. Empirical Musicology Review, [S. l.], v. 8, n. 2, p. 128–154, 2013. Disponível em: https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/EMR/article/view/3932. Acesso em: 30 apr. 2026.