Toth, T.; Kertész, M.; Catasús Guerra, L.; Labrada Labrada, J.; Pérez Machado, B.; Castillo Fonseca, P.; Nieto Martínez, M. Plant Composition of a Pasture As a Predictor of Soil Salinity. Rev. Biol. Trop. 1997, 45, 1385–1393.