@article{ritto_sampaio_cataldo_2008,  title={Timoshenko beam with uncertainty on the boundary conditions},  volume={30},  ISSN={1678-5878},  url={https://doi.org/10.1590/S1678-58782008000400005},  DOI={10.1590/S1678-58782008000400005},  number={4},  journal={Journal of the Brazilian Society of Mechanical Sciences and Engineering},  publisher={Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM},  author={Ritto, Thiago G. and Sampaio, Rubens and Cataldo, Edson},  year={2008},  month={Oct},  pages={295–303} }