25. Munday, John C. , Jr.; and Govindjee: Light-Induced Changes in the Fluores- 



cence Yield of Chlorophyll A in Vivo. Ill - The Dip and the Peak in the 

 Fluorescence Transient of Chlorella pyrenoidosa . Biophys. J., vol. 9, 

 no. 1, 1969, pp. 1-21. 



26. Kiefer, D. A.: Fluorescence Properties of Natural Phytoplankton Popula- 



tions. Mar. Biol., vol. 22, 1973, pp. 263-269. 



27. Blasco, Dolores: Variations of the Ratio in Vivo-Fluorescence a-Chlorophyll 



and Its Application to Oceanography. Effect of Limiting Different 

 Nutrients, of Night and Day and Dependence on the Species Under Investi- 

 gation. NASA TT F-16,317, 1975. 



28. Munday, John C. , Jr.; and Govindjee: Light-Induced Changes in the Fluores- 



cence Yield of Chlorophyll A in Vivo. IV - The Effect of Preillumination 

 on the Fluorescence Transient of Chlorella pyrenoidosa . Biophys. J., 

 vol. 9, no. 1, 1969, pp. 22-35. 



29. Lorenzen, Carl J.: A Method for the Continuous Measurement of in vivo 



Chlorophyll Concentrations. Deep-Sea Res. & Oceanogr. Abstr., vol. 13, 

 1966, pp. 223-227. 



30. Campillo, A. J.; Kollman, V. H. ; and Shapiro, S. L. : Intensity Dependence 



of the Fluorescence Lifetime of in vivo Chlorophyll Excited by a Pico- 

 second Light Pulse. Science, vol. 193, no. 4249, July 16, 1976, 

 pp. 227-229. 



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