%0 Journal Article %T The evolution of the syrinx: An acoustic theory %A Riede, Tobias %A Thomson, Scott L. %A Titze, Ingo R. %A Goller, Franz %J PLoS Biology %V 17 %N 2 %@ 1544-9173 %D 2019-02-07 %I Public Library of Science %~ DeepDyve