Wang, B. & Qiu, Y. L. (2006). “Phylogenetic distribution and evolution of mycorrhizas in land plants”. Mycorrhiza16: 299-363. doi:10.1007/s00572-005-0033-6.
Cox, P.A., Banack, S.A. & Murch, S.J. (2003). “Biomagnification of cyanobacterial neurotoxins and neurodegenerative disease among the Chamorro people of Guam”. Proc. Natl. Acad. Sci. U.S.A.100: 13380-13383. doi:10.1073/pnas.2235808100.