Distribution of Reflected Light from Test Plate of Macbeth Illuminometer and proper Direction of Measurement
マクベス照明計用白色試験板の輝度分布並に適當なる測量方向

S. Seki
1931 Journal of the Illuminating Engineering Institute of Japan  
doi:10.2150/jieij1917.15.special_54 fatcat:p45d6onhrjh65oto2chh32x654