@article{souza_ré-poppi_raposo jr._2012,  title={Characterization of pyroligneous acid used in agriculture by gas chromatography-mass spectrometry},  volume={23},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532012000400005},  DOI={10.1590/S0103-50532012000400005},  number={4},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Souza, João Batista G and Ré-Poppi, Nilva and Raposo Jr., Jorge Luiz},  year={2012},  month={Apr},  pages={610–617} }