1. Pyranometers and Reference Cells, What's the Difference? NREL/JA-5200-54498;Meydbray,2012
2. Pyranometers and Reference Cells: Part 2: what Makes the Most Sense for PV Power Plants. NREL/JA-5200-56718;Meydbray,2012
3. Comparison of pyranometers vs. Reference cells for evaluation of PV array performance;Dunn,2012
4. Comparison of pyranometer and si-reference cell solar irradiation data in long term PV plant monitoring;Haeberlin,1995
5. Photovoltaic Devices - Part 3: Measurement Principles for Terrestrial Photovoltaic (PV) Solar Devices with Reference Spectral Irradiance Data,2016