Chadwick BP, Frischauf AM (Jun 1998). "The CD39-like gene family: identification of three new human members (CD39L2, CD39L3, and CD39L4), their murine homologues, and a member of the gene family from Drosophila melanogaster". Genomics. 50 (3): 357–67. doi:10.1006/geno.1998.5317. PMID9676430.
Chadwick BP, Frischauf AM (Jun 1998). "The CD39-like gene family: identification of three new human members (CD39L2, CD39L3, and CD39L4), their murine homologues, and a member of the gene family from Drosophila melanogaster". Genomics. 50 (3): 357–67. doi:10.1006/geno.1998.5317. PMID9676430.