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Author Title Year Publication Volume Pages (up)
Arnott, J. T. Growth Response of White and Englemann Spruce Seedlings to Extended Photoperiod Using Three Light Intensities 1982 Technical Report: Pacific Forestry Centre
Lumsden, P. J., & Furuya, M. Evidence for Two Actions of Light in the Photoperiodic Induction of Flowering in <italic>Pharbitis nil</italic> 1986 Plant and Cell Physiology
Croft, T.A. The brightness of lights on Earth at night, digitally recorded by DMSP satellite 1979 USGS Numbered Series 80-167
Dickinson, L.G.; Boselly, S.E.; Burgmann, W.S. Defense Meteorological Satellite Program (DMSP) – User's Guide 1974 ADA007678
Kennard, D.C.; Chamberlin, V.D. All-night Light for Layers 1931 Bulletin 476