@article{queiroz junior_horowitz_2016,  title={Shear strength of hollow circular sections},  volume={9},  ISSN={1983-4195},  url={https://doi.org/10.1590/S1983-41952016000200004},  DOI={10.1590/S1983-41952016000200004},  number={2},  journal={Revista IBRACON de Estruturas e Materiais},  publisher={IBRACON - Instituto Brasileiro do Concreto},  author={Queiroz Junior, F. O. and Horowitz, B.},  year={2016},  month={Mar},  pages={214–225} }