Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MORI Toshihide and ITO Hayato and SHIRAO Kazuhisa and SOMA Ryuji and UEDA Kenji,Visual performance compared positive contrast with negative contrast,JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN,0019-2341,The Illuminating Engineering Institute of Japan,2002,86,Appendix,105-105,https://cir.nii.ac.jp/crid/1390282679064511232,https://doi.org/10.2150/jieij1980.86.appendix_105