@article{fontoura_bayer_2010,  title={Ammonia volatilization in no-till system in the south-central region of the State of Paraná, Brazil},  volume={34},  ISSN={0100-0683},  url={https://doi.org/10.1590/S0100-06832010000500020},  DOI={10.1590/S0100-06832010000500020},  number={5},  journal={Revista Brasileira de Ciência do Solo},  publisher={Sociedade Brasileira de Ciência do Solo},  author={Fontoura, Sandra Mara Vieira and Bayer, Cimélio},  year={2010},  month={Sep},  pages={1677–1684} }