ELISHAKOFF, Isaac. An interesting material that appears to be fit to possibly all future mechanical vibration textbooks. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 30, n. 4, p. 253 – 258, 2008. DOI: 10.15625/0866-7136/30/4/5630. Disponível em: https://vjmech.vast.vn/vjmech/article/view/5630. Acesso em: 8 nov. 2025.