Liu G, Warbrick E (October 2006). "The p66 and p12 subunits of DNA polymerase delta are modified by ubiquitin and ubiquitin-like proteins". Biochemical and Biophysical Research Communications. 349 (1): 360–6. doi:10.1016/j.bbrc.2006.08.049. PMID16934752.
Liu G, Warbrick E (October 2006). "The p66 and p12 subunits of DNA polymerase delta are modified by ubiquitin and ubiquitin-like proteins". Biochemical and Biophysical Research Communications. 349 (1): 360–6. doi:10.1016/j.bbrc.2006.08.049. PMID16934752.