@article{steter_pontólio_campos_romero_2008,  title={Modified electrodes prepared with polyphenolic film containing ruthenium complex and metal ligand anchored by azo covalent bond},  volume={19},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532008000400008},  DOI={10.1590/S0103-50532008000400008},  number={4},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Steter, Juliana R. and Pontólio, José O. and Campos, Maria Lúcia A. M. and Romero, José R.},  year={2008},  pages={660–666} }