SOLUTION OF FREE HARMONIC VIBRATION EQUATION OF SIMPLY SUPPORTED KIRCHHOFF PLATE BY GALERKIN-VLASOV METHOD. Nigerian Journal of Technology, [S. l.], v. 36, n. 2, p. 361–365, 2017. DOI: 10.4314/njt.362.1282. Disponível em: https://mail.nijotech.com/index.php/nijotech/article/view/1282. Acesso em: 3 jun. 2026.