Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Akashi Yukio,What is CIE's Recommended System for Mesopic Photometry?(Efficient and Safe Lighting Based on the Spectral Sensitivity of Human Vision at Mesopic Light Levels),JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN,00192341,The Illuminating Engineering Institute of Japan,2013-04-01,97,4,209-212,https://cir.nii.ac.jp/crid/1390002184855105280,https://doi.org/10.2150/jieij.97.209