RsGDB, the Rhodobacter sphaeroides Genome Database. - M. Choudhary; C. Mackenzie; Nigel J. Mouncey; S. Kaplan (Nucleic Acids Res., 1999)

IMG-ABC v.5.0: an update to the IMG/Atlas of Biosynthetic Gene Clusters Knowledgebase. - Krishnaveni Palaniappan; I-Min A. Chen; Ken Chu; Anna Ratner; Rekha Seshadri; Nikos Kyrpides; Natalia N. Ivanova; Nigel J. Mouncey (Nucleic Acids Res., 2020)