TY - JOUR T1 - Analytical study on the vibration frequencies of tapered beams JO - Latin American Journal of Solids and Structures A1 - Bayat, Mahmoud A1 - Pakar, Iman A1 - Bayat, Mahdi SN - 1679-7825 UL - 10.1590/S1679-78252011000200003 VL - 8 Y1 - 2011 PB - Brasil ER -