@article{kolli_león_benayache_estévez_quintana_estévez_brouard_bermejo_benayache_2012,  title={Cytotoxic sesquiterpene lactones and other constituents of Centaurea omphalotricha},  volume={23},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532012000500026},  DOI={10.1590/S0103-50532012000500026},  number={5},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Kolli, El Hadj and León, Francisco and Benayache, Fadila and Estévez, Sara and Quintana, José and Estévez, Francisco and Brouard, Ignacio and Bermejo, Jaime and Benayache, Samir},  year={2012},  month={May},  pages={977–983} }