1. Calibration of tilted Eppley pyranometers under solar radiation;Hammer;Solar Energy,1984
2. O. J. Andersen, personal communication (1984).
3. Radiation observations in Bergen;Schieldrup Paulsen,1979
4. A Study of the Radiation Climate of Southern Norway, Part II: On the Calibration of the Radiation Instruments;Schieldrup Paulsen,1968
5. H. Schieldrup Paulsen, unpublished data kindly put at our disposal.