Q. da Silva, C., J. Zeh, D. Madigan, J. Laake, D. Rugh, L. Baraff, W. Koski, and G. . Miller. “Capture-Recapture Estimation of Bowhead Whale Population Size Using Photo-Identification Data”. J. Cetacean Res. Manage., vol. 2, no. 1, Apr. 2000, pp. 45-51, doi:10.47536/jcrm.v2i1.488.