ESCARZA, S.; CASTRO, S. M.; MARTIG, S. R. Interaction on graphs using non-conventional devices. Journal of Computer Science and Technology, [S. l.], v. 7, n. 01, p. p. 59–65, 2007. Disponível em: https://journal.info.unlp.edu.ar/JCST/article/view/804. Acesso em: 16 mar. 2025.