Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) David H. Sliney,How Light Reaches the Eye and Its Components,International Journal of Toxicology,1091-5818,SAGE Publications,2002-11,21,6,501-509,https://cir.nii.ac.jp/crid/1363388844332458240,https://doi.org/10.1080/10915810290169927