Bonaldo MF، Lennon G، Soares MB (1996). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. ج. 6 ع. 9: 791–806. DOI:10.1101/gr.6.9.791. PMID:8889548.
Lewis MT، Ross S، Strickland PA، وآخرون (1999). "Regulated expression patterns of IRX-2, an Iroquois-class homeobox gene, in the human breast". Cell Tissue Res. ج. 296 ع. 3: 549–54. DOI:10.1007/s004410051316. PMID:10370142.