@article{melo_avellaneda_caram_sichieri_pawlicka_2002,  title={Electrochromic Properties of Sol-gel Coating of Nb2O5 and Nb2O5:Li+},  volume={5},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392002000100007},  DOI={10.1590/S1516-14392002000100007},  number={1},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Melo, L. and Avellaneda, C.O. and Caram, R. and Sichieri, E. and Pawlicka, A.},  year={2002},  month={Jan},  pages={43–46} }