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Cano RJ, Borucki MK (May 1995). “Revival and identification of bacterial spores in 25- to 40-million-year-old Dominican amber”. Science268 (5213): 1060–4. doi:10.1126/science.7538699. PMID7538699.
Ryter A (1988). “Contribution of new cryomethods to a better knowledge of bacterial anatomy”. Ann. Inst. Pasteur Microbiol.139 (1): 33–44. doi:10.1016/0769-2609(88)90095-6. PMID3289587.
Badger MR, Price GD (February 2003). “CO2 concentrating mechanisms in cyanobacteria: molecular components, their diversity and evolution”. J. Exp. Bot.54 (383): 609–22. doi:10.1093/jxb/erg076. PMID12554704.
Vreeland RH, Rosenzweig WD, Powers DW (October 2000). “Isolation of a 250 million-year-old halotolerant bacterium from a primary salt crystal”. Nature407 (6806): 897–900. doi:10.1038/35038060. PMID11057666.
Cano RJ, Borucki MK (May 1995). “Revival and identification of bacterial spores in 25- to 40-million-year-old Dominican amber”. Science268 (5213): 1060–4. doi:10.1126/science.7538699. PMID7538699.