@article{zullo_ramos_monteiro_godoy jr._1987,  title={Extração e isolamento de diosgenina de barbasco},  volume={46},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051987000100002},  DOI={10.1590/S0006-87051987000100002},  number={1},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Zullo, Marco Antonio Teixeira and Ramos, Maria Tereza Baraldi and Monteiro, Domingos Antonio and Godoy Jr., Gentil},  year={1987},  pages={9–15} }