Spatio-Temporal Patterns of Beaked Whale Echolocation Signals in the North Pacific Baumann-Pickering, Simone ; Roch, Marie A. ; Brownell, Robert L., Jr. ; Simonis, Anne E. ; McDonald, Mark A. ; Solsona-Berga, Alba ; Oleson, Erin M. ; Wiggins, Sean M. ; Hildebrand, John A. Abstract Publication: PLoS ONE Pub Date: January 2014 DOI: 10.1371/journal.pone.0086072 Bibcode: 2014PLoSO...986072B