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\bibitem{Sanz-Cobena_etal2014} Sanz-Cobena, A., Garc{\'\i}a-Marco, S., Quemada, M., Gabriel, J. L., Almendros, P., \& Vallejo, A. (2014). Do cover crops enhance N2O, CO2 or CH4 emissions from soil in Mediterranean arable systems? \textit{Science of the Total Environment}, \textit{466-467}, 164--174.

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