Grand MD, Lauderdale DS. Cohort effects in a genetically determined trait: eye colour among US whites (англ.) // Annals of Human Biology. — 2002. — November–December (vol. 29, no. 6). — P. 657–666. — doi:10.1080/03014460210157394.PMID 12573082
Grand MD, Lauderdale DS. Cohort effects in a genetically determined trait: eye colour among US whites (англ.) // Annals of Human Biology. — 2002. — November–December (vol. 29, no. 6). — P. 657–666. — doi:10.1080/03014460210157394.PMID 12573082