SciELO - Scientific Electronic Library Online

SciELO - Scientific Electronic Library Online

Similars in SciELO

PALACIOS, J. L.; BALTHAZAR, J. M.  and  BRASIL, R. M. L. R. F.. On non-ideal and non-linear portal frame dynamics analysis using bogoliubov averaging method. J. Braz. Soc. Mech. Sci. [online]. 2002, vol.24, n.4, pp. 257-265. ISSN 0100-7386.  http://dx.doi.org/10.1590/S0100-73862002000400002.