Sumich, J. L., S. A. . Blokhin, and P. A. Tiupeleyev. “Revised Estimates of Foetal and Post-Natal Growth in Young Gray Whales (Eschrichtius Robustus)”. J. Cetacean Res. Manage., vol. 13, no. 2, Feb. 2023, pp. 89-96, doi:10.47536/jcrm.v13i2.548.