Rasmussen, Heather E.; Kara R. Blobaum; Young-Ki Park; Sarah J. Ehlers; Fan Lu; Ji-Young Lee (March 2008). “Lipid Extract of Nostoc commune var. sphaeroides Kützing, a Blue-Green Alga, Inhibits the Activation of Sterol Regulatory Element Binding Proteins in HepG2 Cells1–3”. The Journal of Nutrition138 (3): 476–481. doi:10.1093/jn/138.3.476. PMID18287352.
Rasmussen, Heather E.; Kara R. Blobaum; Young-Ki Park; Sarah J. Ehlers; Fan Lu; Ji-Young Lee (March 2008). “Lipid Extract of Nostoc commune var. sphaeroides Kützing, a Blue-Green Alga, Inhibits the Activation of Sterol Regulatory Element Binding Proteins in HepG2 Cells1–3”. The Journal of Nutrition138 (3): 476–481. doi:10.1093/jn/138.3.476. PMID18287352.