Generalized Plant Action BSWF of Caldwell  as formulated by Timijan et al. 
normalization wavelength (nm)
short-end boundary wavelength (nm)
long-end boundary wavelength (nm)
a waveband object wavelength defining wavelength range, weighting function and normalization wavelength.
 Caldwell, M. M. (1971) Solar UV irradiation and the growth and development of higher plants. In Giese, A. C. (Ed.) Photophysiology, Academic Press, 1971, 6, 131-177
 Thimijan RW, Cams HR, Campbell L. (1978) Radiation sources and related environmental control for biological and climatic eflFects of UV research. Final report EPA-IAG-D6-0168. Washington: Environmental Protection Agency.
Other BSWF weighted wavebands: