González-Gómez, M. et al. 1992. Nitrogen effect on growth and carrageenan content in Gigartina canaliculata Harv. (Rhodophyta, Gigartinales), in outdoor tank cultures. Ciencias Marinas. 18, 4 (Mar. 1992), 75–83. DOI:https://doi.org/10.7773/cm.v18i4.911.