The database of the smallest known auto-replicable RNA species: viroids and viroid-like RNAs. - Martin Pelchat; Patrick Deschênes; Jean-Pierre Perreault (Nucleic Acids Res., 2000)

SubViral RNA: a database of the smallest known auto-replicable RNA species. - Martin Pelchat; Lynda Rocheleau; Jonathan Perreault; Jean-Pierre Perreault (Nucleic Acids Res., 2003)