Santillán, L., M. Roca, M. Apaza, L. R. Oliveira, and K. Ontón. “ New Record of Mother-Calf Pair of Southern Right Whale, <i>Eubalaena australis</I>, off the Peruvian Coast”. Latin American Journal of Aquatic Mammals, vol. 3, no. 1, June 2004, pp. 83-84, doi:10.5597/lajam00053.