Ángel Perea de la Matta, J. Sánchez Espinoza, and B. Buitrón Díaz, “Gonadal maturity scale of South Pacific hake Merluccius gayi peruanus (Ginsburg, 1954)”, Bol Inst Mar Perú, vol. 30, no. 1-2, pp. 20–28, Dec. 2015.