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\bibitem{Doltra_etal2015} Doltra, J., Olesen, J. E., B{\'a}ez, D., Louro, A., \& Chirinda, N. (2015). Modeling nitrous oxide emissions from organic and conventional cereal-based cropping systems under different management, soil and climate factors. \textit{European Journal of Agronomy}, \textit{66}, 8--20.

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