KHALIFAHAMZEHGHASEM, Smail; KOMARIZADEH, Mohammad Hassan; ASKARI, Mohammad. Recognition of filled walnuts and empty walnuts using acoustic signal processing. International Journal of Agricultural and Biological Engineering, [S. l.], v. 5, n. 3, p. 44–49, 2012. Disponível em: https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/628. Acesso em: 27 feb. 2026.