HOSEN, M. Alal; CHOWDHURY, M.S.H.; ALI, Mohammad Yeakub; ISMAIL, Ahmad Faris. AN ANALYTICAL APPROXIMATION TECHNIQUE FOR THE DUFFING OSCILLATOR BASED ON THE ENERGY BALANCE METHOD. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 37, p. 455–466, 2017. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6690. Acesso em: 16 sep. 2026.