Ana M. Tarquis, María Teresa Castellanos, Maria Carmen Cartagena, Augusto Arce, Francisco Ribas, María Jesús Cabello, Juan López de Herrera, and Nigel R. A. Bird, Scale and space dependencies of soil nitrogen variability. NONLINEAR PROCESSES IN GEOPHYSICS 24, 77-87 (2017). DOI: 10.5194/npg-24-77-2017
