Eguchi, T., Gerrodette, T., Pitman, R. L., Seminoff, J. A., & Dutton, P. H.. (2007).
At-sea density and abundance estimates of the olive ridley turtle Lepidochelys olivacea in the eastern tropical Pacific.
Endangered Species Research,
3, 191 - 203. doi:10.3354/esr003191
Zhao, X., Barlow, J., Taylor, B. L., Pitman, R. L., Wang, K., Wei, Z., et al.. (2008).
Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China.
Biological Conservation,
141(12), 3006 - 3018. doi:10.1016/j.biocon.2008.09.005