Kim, Hyeon-Hye; Wheeler, Raymond M.; Sager, John C.; Yorio, Neil C.; Goins, Gregory D. Light-emitting diodes as an illumination source for plants: a review of research at Kennedy Space Center. Habitation (Elmsford, N.Y.). 2005-01-01, 10 (2): 71–78. ISSN 1542-9660. PMID 15751143. doi:10.3727/154296605774791232.
Goins, G. D.; Yorio, N. C.; Sanwo-Lewandowski, M. M.; Brown, C. S. Life cycle experiments with Arabidopsis grown under red light-emitting diodes (LEDs). Life Support & Biosphere Science: International Journal of Earth Space. 1998-01-01, 5 (2): 143–149. ISSN 1069-9422. PMID 11541670.
Kim, Hyeon-Hye; Wheeler, Raymond M.; Sager, John C.; Yorio, Neil C.; Goins, Gregory D. Light-emitting diodes as an illumination source for plants: a review of research at Kennedy Space Center. Habitation (Elmsford, N.Y.). 2005-01-01, 10 (2): 71–78. ISSN 1542-9660. PMID 15751143. doi:10.3727/154296605774791232.
Hoenecke, M. E.; Bula, R. J.; Tibbitts, T. W. Importance of 'blue' photon levels for lettuce seedlings grown under red-light-emitting diodes. HortScience: A Publication of the American Society for Horticultural Science. 1992-05-01, 27 (5): 427–430. ISSN 0018-5345. PMID 11537611.
Goins, G. D.; Yorio, N. C.; Sanwo-Lewandowski, M. M.; Brown, C. S. Life cycle experiments with Arabidopsis grown under red light-emitting diodes (LEDs). Life Support & Biosphere Science: International Journal of Earth Space. 1998-01-01, 5 (2): 143–149. ISSN 1069-9422. PMID 11541670.
Kim, Hyeon-Hye; Wheeler, Raymond M.; Sager, John C.; Yorio, Neil C.; Goins, Gregory D. Light-emitting diodes as an illumination source for plants: a review of research at Kennedy Space Center. Habitation (Elmsford, N.Y.). 2005-01-01, 10 (2): 71–78. ISSN 1542-9660. PMID 15751143. doi:10.3727/154296605774791232.
Hoenecke, M. E.; Bula, R. J.; Tibbitts, T. W. Importance of 'blue' photon levels for lettuce seedlings grown under red-light-emitting diodes. HortScience: A Publication of the American Society for Horticultural Science. 1992-05-01, 27 (5): 427–430. ISSN 0018-5345. PMID 11537611.