@article{echer_costa_2002,  title={Reaction of sweet pepper to the potato virus y (PVYm)},  volume={59},  ISSN={0103-9016},  url={https://doi.org/10.1590/S0103-90162002000200016},  DOI={10.1590/S0103-90162002000200016},  number={2},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Echer, Márcia de Moraes and Costa, Cyro Paulino da},  year={2002},  month={Apr},  pages={309–314} }