R. Barrangou et al., “CRISPR Provides Acquired Resistance Against Viruses in Prokaryotes”, Science 315 (2007): 1709–1712.
61
A. Bolotin et al., “Complete Sequence and Comparative Genome Analysis of the Dairy Bacterium Streptococcus thermophilus”, Nature Biotechnology 22 (2004): 1554–1558.