K. C., Roy; ALAM M., Shamsul. Effect of higher approximation of Krylov-Bogoliubov-Mitropolskii’s solution and matched asymptotic solution of a differential system with slowly varying coefficients and damping near to a turning point. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 26, n. 3, p. 182–192, 2004. DOI: 10.15625/0866-7136/26/3/5702. Disponível em: https://vjmech.vast.vn/vjmech/article/view/5702. Acesso em: 8 nov. 2025.