U.S.A.,Published Monthly by Pergamon Press for the International Solar ,,

A two band model for the calculation of clear sky solar irradiance, iluminace, and photosynthetically active radiation at the earth's surface - Gueymard (p. 253); The Characterization and modelling of the diffse radiance distribution under partly cloudy skies - Rosen (p. 281); The utiliy of the Angstrom type equation for the estimation of global irradiation - Lewis (p. 297); Simulation of solar air drying of rapeseed - Patil (p. 305); Reply to coments by D.L. Evans - El rafey (p. 321); Errata (p. 323).

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