RODRÍGUEZ ROJO, M. P.; SARDINERO, S.; FERNÁNDEZ-GONZÁLEZ, F. Patterns of community and species diversity in grassland vegetation of the southwestern Iberian System. Lazaroa, v. 34, p. 219–236, 23 Dec.2013 https://doi.org/10.5209/rev_LAZA.2013.v34.n1.42664.