@article{sambiassi_escalada_schmalko_2002,  title={Extraction optimization of soluble compounds of yerba maté},  volume={45},  ISSN={1516-8913},  url={https://doi.org/10.1590/S1516-89132002000200010},  DOI={10.1590/S1516-89132002000200010},  number={2},  journal={Brazilian Archives of Biology and Technology},  publisher={Instituto de Tecnologia do Paraná - Tecpar},  author={Sambiassi, César and Escalada, Andrea M. and Schmalko, Miguel E.},  year={2002},  month={Jun},  pages={189–193} }