TY - CONF AU - Carl Miller AU - T Heimer AU - Tim Donahue AU - M Schwartz AU - David Kuniega C2 - Conference Proceeding of the International Commission on Illumination | 26th | 2007 | CIE |, Beijing, CH DA - 2007-07-11 LA - en PB - Conference Proceeding of the International Commission on Illumination | 26th | 2007 | CIE |, Beijing, CH PY - 2007 TI - Measuring the Luminance of a Retroreflective Sign ER -