Acharya S، Rayborn ME، Hollyfield JG (1998). "Characterization of SPACR, a sialoprotein associated with cones and rods present in the interphotoreceptor matrix of the human retina: immunological and lectin binding analysis". Glycobiology. ج. 8 ع. 10: 997–1006. DOI:10.1093/glycob/8.10.997. PMID:9719680.
Acharya S، Rodriguez IR، Moreira EF، وآخرون (1998). "SPACR, a novel interphotoreceptor matrix glycoprotein in human retina that interacts with hyaluronan". J. Biol. Chem. ج. 273 ع. 47: 31599–606. DOI:10.1074/jbc.273.47.31599. PMID:9813076.{{استشهاد بدورية محكمة}}: صيانة الاستشهاد: دوي مجاني غير معلم (link)
Kuehn MH، Hageman GS (2000). "Expression and characterization of the IPM 150 gene (IMPG1) product, a novel human photoreceptor cell-associated chondroitin-sulfate proteoglycan". Matrix Biol. ج. 18 ع. 5: 509–18. DOI:10.1016/S0945-053X(99)00043-8. PMID:10601738.
Mungall AJ، Palmer SA، Sims SK، وآخرون (2003). "The DNA sequence and analysis of human chromosome 6". Nature. ج. 425 ع. 6960: 805–11. DOI:10.1038/nature02055. PMID:14574404.