1. Cameron CE Götte M (2009) in Viral Genome Replication, ed Raney K (Springer, New York).
2. Kuhn RJ (2007) Fields’ Virology (Lippincott Williams & Wilkins, Philadelphia), 5th Ed, pp 1001–1022.
3. Lai MMC Perlman S Anderson LJ (2007) Fields’ Virology (Lippincott Williams & Wilkins, Philadelphia), 5th Ed, pp 1305–1335.
4. Lazarowitz SG (2007) Fields’ Virology (Lippincott Williams & Wilkins, Philadelphia), 5th Ed, pp 641–705.
5. Domingo E (1996) Basic concepts in RNA virus evolution. FASEB J 10(8):859–864.