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2. Comparative development of 11 plants grown under various fluorescent lamps and different durations of irradiation with and without additional incandescent lighting;Cathey;J. Am. Soc. Hortic. Sci.,1978
3. Comparison of Gro-lux and Cool-white fluorescent lamps with and without incandescence as light sources used in plant growth rooms for growth and development of tomato plants;Helson;Can. J. Plant Sci.,1965
4. Some aspects of plant irradiation;Meijer;Acta Hortic.,1971