Title:Relative abundance and autecology of three piscivorous fishes in lakes of the upper basin of Salado River (Buenos Aires Province, Argentina) / Peces piscívoros en lagunas de la cuenca superior del río Salado (Buenos Aires, Argentina): abundancia relativa y autoecología
Title:Response of weed populations to tillage, reduced herbicide and fertilizer rates in wheat (Triticum aestivum) production / Resposta de Populações de Plantas Daninhas ao Plantio e a Taxas Reduzidas de Herbicida e Nitrogênio na Produção de Trigo (Triticum aestivum)