Ensembl 2005. - Tim J. P. Hubbard; D. Andrews; Mario Cáccamo; Graham Cameron; Yuan Chen 007; Michele E. Clamp; Laura Clarke; Guy Coates; Tony Cox 001; Fiona Cunningham; Val Curwen; Tim Cutts; et al. (Nucleic Acids Res., 2005)

Ensembl 2006. - Ewan Birney; T. Daniel Andrews; Mario Cáccamo; Yuan Chen 007; Laura Clarke; Guy Coates; Tony Cox 001; Fiona Cunningham; Val Curwen; Tim Cutts; Thomas A. Down; Richard Durbin; et al. (Nucleic Acids Res., 2006)