3rd Week of August

Hovi, Aarne, et al. "Evaluation of accuracy and practical applicability of methods for measuring leaf reflectance and transmittance spectra." Remote Sensing 10.1 (2017): 25.

Leaf clip can sense only certain angular light. The reflectance significantly differs from integrating spheres which can sense hemisperical radiant flux, as leaf surface is not assumed as a lambertian surface.