Repeated downsweep vocalizations of the Araguaian river dolphin, Inia araguaiaensis Melo-Santos, Gabriel ; Walmsley, Sam F. ; Marmontel, Miriam ; Oliveira-da-Costa, Marcelo ; Janik, Vincent M. Abstract Publication: Acoustical Society of America Journal Pub Date: February 2020 DOI: 10.1121/10.0000624 Bibcode: 2020ASAJ..147..748M