@article{mendez_deconto_garcia_2010,  title={UV derivative spectrophotometric method for determination of estradiol valerate in tablets},  volume={33},  ISSN={0100-4042},  url={https://doi.org/10.1590/S0100-40422010000400040},  DOI={10.1590/S0100-40422010000400040},  number={4},  journal={Química Nova},  publisher={Sociedade Brasileira de Química},  author={Mendez, Andreas S. L. and Deconto, Lislaine and Garcia, Cássia V.},  year={2010},  pages={981–983} }