1. Analytical determination of direct visible solar energy transmitted by rigid plastic greenhouses;Manbeck;Trans. Am. Soc. agric. Engrs,1967
2. On the light entering glasshouses;Comrie,1948
3. Lichtdoorlatendheid van met vlakke materialen bedekte warenhuizen;Stoffers,1970
4. The absorption of radiation in solar stills;Cooper;Sol. Energy,1969
5. The distribution of energy in the visible spectrum of daylight;Taylor;J. opt. Soc. Am.,1941