Hofmann S, Lichtner P, Schuffenhauer S, Gerbitz KD, Meitinger T (Mar 1999). "Assignment of the human genes coding for cytochrome c oxidase subunits Va (COX5A), VIc (COX6C) and VIIc (COX7C) to chromosome bands 15q25, 8q22→q23 and 5q14 and of three pseudogenes (COX5AP1, COX6CP1, COX7CP1) to 14q22, 16p12 and 13q14→q21 by FISH and radiation hybrid mapping". Cytogenet Cell Genet. 83 (3–4): 226–7. doi:10.1159/000015185. PMID10072584.
Hofmann S, Lichtner P, Schuffenhauer S, Gerbitz KD, Meitinger T (Mar 1999). "Assignment of the human genes coding for cytochrome c oxidase subunits Va (COX5A), VIc (COX6C) and VIIc (COX7C) to chromosome bands 15q25, 8q22→q23 and 5q14 and of three pseudogenes (COX5AP1, COX6CP1, COX7CP1) to 14q22, 16p12 and 13q14→q21 by FISH and radiation hybrid mapping". Cytogenet Cell Genet. 83 (3–4): 226–7. doi:10.1159/000015185. PMID10072584.