[1]
Drehmer, C.J. and Oliveira, L.R. 2003. Occurrence of gastroliths in South American sea lions (<i>Otaria byronia</i>) from southern Brazil. Latin American Journal of Aquatic Mammals. 2, 2 (Dec. 2003), 123-126. DOI:https://doi.org/10.5597/lajam00041.