@article{vieira_nascentes_augusti_2010,  title={Ozonation of ethinylestradiol in aqueous-methanolic solution: direct monitoring by electrospray ionization mass spectrometry},  volume={21},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532010000500004},  DOI={10.1590/S0103-50532010000500004},  number={5},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Vieira, Karla M. and Nascentes, Clésia C. and Augusti, Rodinei},  year={2010},  pages={787–794} }