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Hao Luo, Yan Lin, Feng Gao, Chun-Ting Zhang and Ren Zhang, (2014) DEG 10, an update of the Database of Essential Genes that includes both protein-coding genes and non-coding genomic elements. Nucleic Acids Research 42, D574-D580.[Abstract]

Ren Zhang and Yan Lin, (2009) DEG 5.0, a database of essential genes in both prokaryotes and eukaryotes. Nucleic Acids Research 37, D455-D458. [Abstract]

Ren Zhang, Hong-Yu Ou and Chun-Ting Zhang, (2004) DEG, a Database of Essential Genes. Nucleic Acids Research 32, D271-D272. [Abstract][PDF]