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Bradley, Walter G.; Mash, Deborah C. (25 November 2009). "Beyond Guam: The cyanobacteria/BMAA hypothesis of the cause of ALS and other neurodegenerative diseases". Amyotrophic Lateral Sclerosis. 10 (sup2): 7–20. doi:10.3109/17482960903286009. PMID19929726. S2CID41622254.
Castillo-Guevara, Citlalli; Rico-Gray, Victor (July 2003). "The Role of Macrozamin and Cycasin in Cycads (Cycadales) as Antiherbivore Defenses". Journal of the Torrey Botanical Society. 130 (3): 206. doi:10.2307/3557555. JSTOR3557555.
Bradley, Walter G.; Mash, Deborah C. (25 November 2009). "Beyond Guam: The cyanobacteria/BMAA hypothesis of the cause of ALS and other neurodegenerative diseases". Amyotrophic Lateral Sclerosis. 10 (sup2): 7–20. doi:10.3109/17482960903286009. PMID19929726. S2CID41622254.
Bradley, Walter G.; Mash, Deborah C. (25 November 2009). "Beyond Guam: The cyanobacteria/BMAA hypothesis of the cause of ALS and other neurodegenerative diseases". Amyotrophic Lateral Sclerosis. 10 (sup2): 7–20. doi:10.3109/17482960903286009. PMID19929726. S2CID41622254.