THANGAVELU, K.; SARASWATHI, G. OSCILLATION OF THREE DIMENSIONAL NEUTRAL DELAYDIFFERENCE SYSTEMS. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 12, n. 10, p. 6751–6757, 2016. DOI: 10.24297/jam.v12i10.83. Disponível em: https://rajpub.com/index.php/jam/article/view/83. Acesso em: 22 nov. 2024.