Simsek, M.; Kocaturk, T.: Free vibration analysis of beams by using a third-order shear deformation theory. Sadana 32, 167-179 (2007)M. S- ims-ek, T. Kocatu¨ rk, Free vibration analysis of beams by using a third-order shear deformation theory, Sa¯ dhana¯ 32 (2007) 167-...