McGeoch, Duncan J.; Davison, Andrew J.; Dolan, Aidan; Gatherer, Derek; Sevilla-Reyes, Edgar E. (2008). DOMINGO, ESTEBAN; PARRISH, COLIN R.; HOLLAND, JOHN J. (eds.). Origin and Evolution of Viruses (Second ed.). London: Academic Press. pp. 447–475. ISBN9780123741530.