A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL. The file type is application/pdf.
application/pdf
大久保 信和, 角 清二, 吉川 孝次郎. "トンネル照明における路面照度の経時変化." Journal of the Illuminating Engineering Institute of Japan 66.Appendix (1982) 154-154