UniProt archive. - Rasko Leinonen; Federico Garcia Diez; David Binns; Wolfgang Fleischmann; Rodrigo Lopez; Rolf Apweiler (Bioinform., 2004)

The EMBL Nucleotide Sequence Database. - Carola Kanz; Philippe Aldebert; Nicola Althorpe; Wendy Baker; Alastair Baldwin; Kirsty Bates; Paul Browne; Alexandra van den Broek; Matias Castro; Guy Cochrane; Karyn Duggan; Ruth Y. Eberhardt; et al. (Nucleic Acids Res., 2005)