@article{nachtigall_dechen_2007,  title={Testing and validation of DRIS for apple tree},  volume={64},  ISSN={0103-9016},  url={https://doi.org/10.1590/S0103-90162007000300012},  DOI={10.1590/S0103-90162007000300012},  number={3},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Nachtigall, Gilmar Ribeiro and Dechen, Antonio Roque},  year={2007},  month={May},  pages={288–294} }