Surface stress waves in a nonhomogeneous elastic half-space Part II. Existence of surface waves for an arbitrary variation of Poisson’s ratio Approximate solution based on perturbation methods. Archives of Mechanics - Test, [S. l.], v. 48, n. 3, p. 513–539, 1996. Disponível em: https://am3.ippt.pan.pl/index.php/am/article/view/v48p513. Acesso em: 28 jun. 2025.