[1]
N. E. Aponte de Otaola, M. Díaz-Piferrer, and H. D. Graham, “Seasonal Variations and Anatomical Distribution of Alginic Acid in Sargassum Spp. Found Along the Coasts of Puerto Rico”, JAUPR, vol. 67, no. 4, pp. 464–475, Oct. 1983.