1. Anonymous, (1972) Beleuchtung von Straßentunneln und Unterführungen; Richtlinien, DIN 67 524
2. Anonymous, (1996) IESNA Recommended Practise for Tunnel Lighting, American National Standard, RP-22-96
3. Anonymous, (1990) Guide for the Lighting of Road Tunnels and Underpasses, Technical Report, CIE Publication, No: 88
4. Onaygil, S., (1990) Determining the Luminance of the Threshold Zone in Tunnel Lighting, Doctorate Thesis, Istanbul Technical University
5. Schreuder, D.A., (1964) The Lighting of Vehicular Traffic Tunnels, Doctorate Thesis, Technical University, Eindhoven, Philips Technical Library