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2. La diagonal árida Argentina: un límite climático real;Bruniard;Rev. Geogr.,1982
3. Regiones Fitogeográficas Argentinas, Fascículo 1. Buenos Aires;Cabrera,1976
4. Distribution of C3 and C4 grasses at different altitudes in a temperate arid region of Argentina;Cavagnaro;Oecologia,1988
5. Pollen analysis of Gruta del Indio;D'Antoni,1983