TY - CONF T1 - THE EFFECT OF CHANGES IN LIGHT LEVEL ON THE NUMBERS OF CYCLISTS JO - Proceedings of the Conference CIE 2021 UR - https://doi.org/10.25039/x48.2021.po63 PY - 2021/09/01 AU - Uttley J AU - Fotios S AU - Robbins CJ AU - Moscoso C ED - DO - DOI: 10.25039/x48.2021.po63 PB - International Commission on Illumination, CIE SP - 847 EP - 852 Y2 - 2025/11/15 ER -