Update of the viroid and viroid-like sequence database: addition of a hepatitis delta virus RNA section. - Daniel A. Lafontaine; Stéphane Mercure; Jean-Pierre Perreault (Nucleic Acids Res., 1997)

The viroid and viroid-like RNA database. - Daniel A. Lafontaine; Stéphane Mercure; Véronique Poisson; Jean-Pierre Perreault (Nucleic Acids Res., 1998)