DNMT3B
“Cloning, expression and chromosome locations of the human DNMT3 gene family”. Gene 236 (1): 87–95. (August 1999). doi:10.1016/S0378-1119(99)00252-8. PMID 10433969.
“DNA methyltransferases Dnmt3a and Dnmt3b are essential for de novo methylation and mammalian development”. Cell 99 (3): 247–57. (October 1999). doi:10.1016/S0092-8674(00)81656-6. PMID 10555141.
“The DNMT3B DNA methyltransferase gene is mutated in the ICF immunodeficiency syndrome”. Proceedings of the National Academy of Sciences of the United States of America 96 (25): 14412–7. (December 1999). doi:10.1073/pnas.96.25.14412. PMC 24450. PMID 10588719. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC24450/.