TY - JOUR T1 - Patterns of fish species richness in rivers of the central region of Argentina JO - Brazilian Journal of Biology A1 - BISTONI, M. A. A1 - HUED, A. C. SN - 1519-6984 UL - 10.1590/S1519-69842002000500004 VL - 62 Y1 - 2002 PB - Brasil ER -