↑(en) Aron Marchler-Bauer*, Chanjuan Zheng, Farideh Chitsaz, Myra K. Derbyshire, Lewis Y. Geer, Renata C. Geer, Noreen R. Gonzales, Marc Gwadz, David I. Hurwitz, Christopher J. Lanczycki, Fu Lu, Shennan Lu, Gabriele H. Marchler, James S. Song, Narmada Thanki, Roxanne A. Yamashita, Dachuan Zhang et Stephen H. Bryant, « CDD: conserved domains and protein three-dimensional structure », Nucleic Acids Research, vol. 41, no D1, , D348-D352 (PMID23197659, PMCID3531192, DOI10.1093/nar/gks1243, lire en ligne)