1. J.K. PAGE, Solar energy and architecture, to be published in Proc. Roy. Inst., London, Vol. 47, in the press, 1974.
2. J.K. PAGE, The estimation of monthly mean values of daily short wave radiation on vertical and inclined surfaces from sunshine records for latitude 40°N − 40°S, U.N. Conf. New Sources of Energy, Rome, 1961, Paper E/Conf. 35/5/98.
3. H. HEYWOOD, A general equation for calculating total radiation on inclined surfaces, Proc. Int. Solar Energy Soc. Conf., Australia, Paper 3/21.
4. J.K. PAGE and S. KHEDER, Solar radiation observations on vertical surfaces at Liverpool, Dept. of Building Science, University of Sheffield, Internal Note.