Walker PJ, Siddell SG, Lefkowitz EJ, et al. (6 July 2021). "Changes to virus taxonomy and to the International Code of Virus Classification and Nomenclature ratified by the International Committee on Taxonomy of Viruses (2021)". Archives of Virology. 168 (9): 2633–2648. doi:10.1007/s00705-021-05156-1. hdl:10362/134245. PMID34231026.
Walker PJ, Siddell SG, Lefkowitz EJ, et al. (6 July 2021). "Changes to virus taxonomy and to the International Code of Virus Classification and Nomenclature ratified by the International Committee on Taxonomy of Viruses (2021)". Archives of Virology. 168 (9): 2633–2648. doi:10.1007/s00705-021-05156-1. hdl:10362/134245. PMID34231026.
Di Serio F, Li SF, Matoušek J, Owens RA, Pallás V, Randles JW, Sano T, Verhoeven JT, Vidalakis G, Flores R (June 2020). "Family: Avsunviroidae". The 10th ICTV Report on Virus Classification and Taxon Nomenclature. ICTV. Retrieved 16 January 2023.
Di Serio F, Owens RA, Li SF, Matoušek J, Pallás V, Randles JW, Sano T, Verhoeven JT, Vidalakis G, Flores R (November 2020). "Family: Pospiviroidae". The 10th ICTV Report on Virus Classification and Taxon Nomenclature. ICTV. Retrieved 16 January 2023.
ictvonline.org
talk.ictvonline.org
"Subviral Agents". ICTV 9th Report (2011). International Committee on Taxonomy of Viruses. Archived from the original on Jul 7, 2022. Retrieved 2020-06-15. Updated version in sync with current release: "Subviral Agents". 10th Report. International Committee on Taxonomy of Viruses. Archived from the original on Jul 2, 2022.
Walker PJ, Siddell SG, Lefkowitz EJ, et al. (6 July 2021). "Changes to virus taxonomy and to the International Code of Virus Classification and Nomenclature ratified by the International Committee on Taxonomy of Viruses (2021)". Archives of Virology. 168 (9): 2633–2648. doi:10.1007/s00705-021-05156-1. hdl:10362/134245. PMID34231026.
"Subviral Agents". ICTV 9th Report (2011). International Committee on Taxonomy of Viruses. Archived from the original on Jul 7, 2022. Retrieved 2020-06-15. Updated version in sync with current release: "Subviral Agents". 10th Report. International Committee on Taxonomy of Viruses. Archived from the original on Jul 2, 2022.