@article{loh_vargas_2001,  title={
       },  volume={12},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532001000400001},  DOI={10.1590/S0103-50532001000400001},  number={4},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Loh, Watson and Vargas, Maria D.},  year={2001},  month={Jul} }