@article{sepúlveda_vera_yori_badano_santarosa_mandelli_2011,  title={H3PW12O40 (HPA), an efficient and reusable catalyst for biodiesel production related reactions: esterification of oleic acid and etherification of glycerol},  volume={34},  ISSN={0100-4042},  url={https://doi.org/10.1590/S0100-40422011000400009},  DOI={10.1590/S0100-40422011000400009},  number={4},  journal={Química Nova},  publisher={Sociedade Brasileira de Química},  author={Sepúlveda, Jorge H. and Vera, Carlos R. and Yori, Juan C. and Badano, Juan M. and Santarosa, Daniel and Mandelli, Dalmo},  year={2011},  pages={601–606} }