Vicente-Serrano, S., E. Rodríguez-Camino, F. Domínguez-Castro, A. El Kenawy, and C. Azorín-Molina. “An Updated Review on Recent Trends in Observational Surface Atmospheric Variables and Their Extremes over Spain”. Cuadernos De Investigación Geográfica, vol. 43, no. 1, June 2017, pp. 209-32, doi:10.18172/cig.3134.