2004
D. J. Strickland, Lean, J. L., Meier, R. R., Christensen, A. B., Paxton, L. J., Morrison, D., Craven, J. D., Walterscheid, R. L., Judge, D. L., and McMullin, D. R.,
“Solar EUV irradiance variability derived from terrestrial far ultraviolet dayglow observations”,
Geophysical research letters, vol. 31, 2004.