@article{gotardo_sequinel_pezza_pezza_2008,  title={Determination of atenolol in pharmaceutical formulations by diffuse reflectance spectroscopy},  volume={33},  ISSN={0100-4670},  url={https://doi.org/10.1590/S0100-46702008000400001},  DOI={10.1590/S0100-46702008000400001},  number={4},  journal={Eclética Química},  publisher={Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP},  author={Gotardo, M. A. and Sequinel, R. and Pezza, L. and Pezza, H. R.},  year={2008},  month={Oct},  pages={7–12} }