Hi Brothers;

Please help me to find these documents

(a) ISO 9845-1, Solar energy - Reference solar spectral irradiance at the ground at
different receiving conditions, Part 1: Direct normal and hemispherical solar
irradiance for air mass 1,5
(b) DIN 5034-2, Daylight in interiors; principles.
(c) IEC 61725, Analytical expression for daily solar profiles