R. Pohrt, V. L. Popov, A. E. Filippov, CONTACT STIFFNESS OF BODIES WITH FRACTAL ROUGHNESS: COMPARISON OF 3D BEM RESULTS AND REDUCTION METHOD, Blucher Mechanical Engineering Proceedings, Volume 1, 2014, Pages 1041-1044, ISSN 23580828, http://dx.doi.org/10.5151/meceng-wccm2012-18245 (www.proceedings.blucher.com.br/article-details/contact-stiffness-of-bodies-with-fractal-roughness-comparison-of-3d-bem-results-and-reduction-method-9066) Palavras-chave:: ;