@article{simon_hancu_gyéresi_2014,  title={Application of capillary electrophoresis to the simultaneous determination and stability study of four extensively used penicillin derivatives},  volume={50},  ISSN={1984-8250},  url={https://doi.org/10.1590/S1984-82502014000300010},  DOI={10.1590/S1984-82502014000300010},  number={3},  journal={Brazilian Journal of Pharmaceutical Sciences},  publisher={Universidade de São Paulo, Faculdade de Ciências Farmacêuticas},  author={Simon, Brigitta and Hancu, Gabriel and Gyéresi, Árpád},  year={2014},  month={Jul},  pages={521–527} }