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Brasier, M. D., et al. “Questioning the Evidence for Earth's Oldest Fossils.” GEOCHIMICA ET COSMOCHIMICA ACTA, vol. 66, no. 15A, 2002, pp. A101–A101.

Brasier, MD, OR Green, AP Jephcoat, AK Kleepe, MJ Van Kranendonk, F Lindsay, A Steele, and NV Grassineau. 2002. “Questioning the Evidence for Earth's Oldest Fossils.” GEOCHIMICA ET COSMOCHIMICA ACTA 66 (15A): A101–A101.