Kreft S and Kreft M 2007. Physicochemical and physiological basis of dichromatic color. Naturwissenschaften94, 935-939. On-line PDFArchived 2020-05-01 at the Wayback Machine
Kreft S and Kreft M 2007. Physicochemical and physiological basis of dichromatic color. Naturwissenschaften94, 935-939. On-line PDFArchived 2020-05-01 at the Wayback Machine