ASYMPTOTIC SOLUTIONS OF THE NON-LINEAR WAVE EQUATION OF VAN-DER-POL TYPE ON THE INFINITE LINE*. Nigerian Journal of Technology, [S. l.], v. 7, n. 1, p. 1–10, 2002. DOI: 10.4314/njt.71.368. Disponível em: https://mail.nijotech.com/index.php/nijotech/article/view/368. Acesso em: 19 apr. 2026.