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2. The transmission of diffuse light by a sloping roof;Bowman;J. agric. Engng Res.,1970
3. Light transmission and photosynthesis in greenhouses;Kozai;Wageningen Centre for Agricultural Publishing and Documentation,1978
4. A survey of glasshouses and glasshouse practice;Jones;J. agric. Engng Res.,1966
5. A contribution to glasshouse design;Smith;Agric. Met.,1971