F. YOUNG , R., and S. . PEACE. “Using Simultaneous Counts by Independent Observers to Correct for Observer Variability and Missed Sightings in a Shore-Based Survey of Bottlenose Dolphins, Tursiops Truncatus”. J. Cetacean Res. Manage., vol. 1, no. 3, Dec. 1999, pp. 279-87, doi:10.47536/jcrm.v1i3.480.