Koblentz, Gregory D. (2017). "The De Novo Synthesis of Horsepox Virus: Implications for Biosecurity and Recommendations for Preventing the Reemergence of Smallpox, Science, by Koblentz GD, August 24, 2017 Health Secur". Health Security. 15 (6): 620–628. doi:10.1089/hs.2017.0061. PMID28836863.
Koblentz, Gregory D. (2017). "The De Novo Synthesis of Horsepox Virus: Implications for Biosecurity and Recommendations for Preventing the Reemergence of Smallpox, Science, by Koblentz GD, August 24, 2017 Health Secur". Health Security. 15 (6): 620–628. doi:10.1089/hs.2017.0061. PMID28836863.