@article{frederico_ruas_marin-morales_ruas_nakajima_1996,  title={Chromosome studies in some Stevia. Cav. (Compositae) species from Southern Brazil},  volume={19},  ISSN={0100-8455},  url={https://doi.org/10.1590/S0100-84551996000400013},  DOI={10.1590/S0100-84551996000400013},  number={4},  journal={Brazilian Journal of Genetics},  publisher={Sociedade Brasileira de Genética},  author={Frederico, Adriana P. and Ruas, Paulo M. and Marin-Morales, Maria A. and Ruas, Claudete F. and Nakajima, Jimi N.},  year={1996},  pages={605–609} }