M. Arellano-Martínez and B. P. Ceballos-Vázquez, “Reproductive activity and condition index of <i>Holacanthus passer</i> (Teleostei: Pomacanthidae) in the Gulf of California, Mexico”, Rev. Biol. Trop., vol. 49, no. 3-4, pp. 939–943, Dec. 2001.