1. Tunnel lighting practice world-wide;Wout;Journal of Lighting Research and Technology,1981
2. Z.Y. Zhang, X.L. Ding, Study on energy-saving of highway tunnel lighting in mountain, in: The 9th Seminar of China Highway Information Management and Technologies, Hefei, Anhui, 2007, pp. 327–330.
3. Road tunnel lighting;Ishimura;Journal of the Japan Society of Mechanical Engineers,2004
4. A study on tunnel lighting;Beka;Journal of Lighting Design & Application,2005
5. Study on highway tunnel lighting energy-saving;Chen;Journal of Light & Lighting,2008