@article{alcantara_fernandes jr._2002,  title={Twenty years of research on cholesteric lyotropic liquid crystals at the Chemistry Institute of the University of São Paulo},  volume={32},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332002000300009},  DOI={10.1590/S0103-97332002000300009},  number={2b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Alcantara, M. R. and Fernandes Jr., E. G.},  year={2002},  month={Jun},  pages={509–515} }