M. G. Frías-Espericueta, F. Páez-Osuna, and J. I. Osuna-López, “Seasonal changes in the gonadal state of the oysters Crassostrea iridescens and Crassostrea corteziensis (Filibranchia: Ostreidae) in the Northwest coast of México”., Rev. Biol. Trop., vol. 45, no. 3, pp. 1061–1065, Sep. 1997.