Silva, et al 2014. Acanthamoeba polyphaga mimivirus and other giant viruses: an open field to outstanding discoveries. Virology Journal11:120.

Claverie, J. M., and C. Abergel. 2013. Open questions about giant viruses.Advances in Virus Research85:25-56.

Forterre, P. 2010. Defining life: The virus viewpoint.Origins of Life andEvolution of Biospheres40:151–60.

Forterre, P., M. Krupovic, and D. Prangishvili. 2014. Cellular domains and viral lineages. Trends in Microbiology22:554–58.

Katzourakis, A., and A. Aswad. 2014. The origins of giant viruses,virophages and their relatives in host genomes. BMC Biology12:51.

Koonin, E. V., and V. V. Dolja. 2014. Virus world as an evolutionary network of viruses and capsidless selfis