Births and growth models of sea lions and their application in the management of this resource

od Morales-Vela, B, Aguayo-Lobo, A
Wydane 1992

Skull development of the California sea lion (Zalophus californianus californianus)

od Vázquez-Cuevas, MJ, Aguayo-Lobo, A, Medrano-González, L
Wydane 2000