File: Present_WalkerR_Jan2005_0.pdfRegion name: Amazon BasinProgram name: LBAFirst author: Robert WalkerSecond author: Carlos SouzaStephen AldrichJuan Andres RobalinoEustaquio ReisAlexander PfaffStephen PerzClaudio BohrerQi JianguoMarcellus CaldasEugenio ArimaEt Al: YPublication year: 2005