Chabot, Brian F.; Jurik, Thomas W.; Chabot, Jean F. (September 1979). "Influence of Instantaneous and Integrated Light-Flux Density on Leaf Anatomy and Photosynthesis". American Journal of Botany. 66 (8): 940. doi:10.2307/2442235. JSTOR2442235.
Chabot, Brian F.; Jurik, Thomas W.; Chabot, Jean F. (September 1979). "Influence of Instantaneous and Integrated Light-Flux Density on Leaf Anatomy and Photosynthesis". American Journal of Botany. 66 (8): 940. doi:10.2307/2442235. JSTOR2442235.