Parra Ruiz Díaz, A. C., L. J. . Villalba Marín, and S. M. . Amarilla Rodríguez. “Provisioning of the Ecosystem Service ‘total Nitrogen retention’ and Its Variation under Changing Land Use and Coverage in the Jejui Guazú River Basin, Paraguay”. Investigación Agraria, vol. 24, no. 1, July 2022, pp. 31-39, doi:10.18004/investig.agrar.2022.junio.2401704.