S. Lluch-Cota, S. Álvarez-Borrego, E. Santamaría-Ángel, F. Müller-Karger, and S. Hernández-Vázquez, “The Gulf of Tehuantepec and adjacent areas: spatial and temporal variation of satellite-derived photosynthetic pigments”, Cienc. Mar., vol. 23, no. 3, pp. 329–340, Mar. 1997.