Nagasaki, K., Shirai, Y., Tomaru, Y., Nishida, K., & Pietrokovski, S. (2005). Algal Viruses with Distinct Intraspecies Host Specificities Include Identical Intein Elements. Applied and Environmental Microbiology, 71(7), 3599–3607. https://doi.org/10.1128/aem.71.7.3599-3607.2005