%0 Journal Article %T The illuminated surface areas of high-intensity discharge and tungsten halogen headlamps in the USA %A Schoettle, B %A Sivak, M %A Flannagan, MJ %A Adachi, G %J Lighting Research & Technology %V 36 %N 3 %P 243-249 %@ 1477-1535 %D 2004-09-01 %I SAGE Publications %~ DeepDyve