TY - JOUR T1 - Aspects of the ecology of proteocephalid cestodes parasites of Sorubim lima (Pimelodidae) of the upper ParanĂ¡ River, Brazil: I. Structure and influence of host's size and sex JO - Revista Brasileira de Biologia A1 - TAKEMOTO, R. M. A1 - PAVANELLI, G. C. SN - 0034-7108 UL - 10.1590/S0034-71082000000400006 VL - 60 Y1 - 2000 PB - Brasil ER -