%0 Journal Article %K Cool roofs %K Kubelka-Munk theory %K Pigment characterization %K Refractive-index discontinuity %K Solar spectral optical properties %A Ronnen M Levinson %A Paul H Berdahl %A Hashem Akbari %B Solar Energy Materials and Solar Cells %D 2005 %G eng %N 4 %P 319-349 %R 10.1016/j.solmat.2004.11.012 %T Solar spectral optical properties of pigments—Part I: model for deriving scattering and absorption coefficients from transmittance and reflectance measurements %V 89 %8 12/2005