Cortez Casamayor, S., C. Guidino, and A. S. Pacheco. “Spatial Distribution and Abundance of Baleen and Sperm Whales in the Peruvian Sea: A Historical Review”. Latin American Journal of Aquatic Mammals, vol. 17, no. 2, Oct. 2022, pp. 74-92, doi:10.5597/lajam00285.