Barth, C.A., S.M Bailey, & S.C. Solomon (1999), Solar-terrestrial coupling: Solar soft x-rays and thermospheric nitric oxide, Geophys. Res. Lett., 26, 1251-1254.
Carrington, R.C. (1860), Description of a singular appearance seen on the Sun on September 1, 1859, Mon. Not. R. Astron. Soc., 20, 13-15.
Chapman, S. & J. Bartels (1940), Geomagnetism, vol. I, pp. 328- 337, Oxford Univ. Press, New York.
Crutzen, P. J., et al. (1975), Solar proton events: Stratospheric sources of nitric oxide, Science, 189, 457-458. [OpenAIRE]
Cullen, J.J., P.J. Neale, & M.P. Lesser (1992), Biological Weighting Function for the Inhibition of Phytoplankton Photsynthesis by Ultraviolet Radiation, Science, 258, 646-649.
Ejzak, L.M., A.L. Melott, M.V. Medvedev, B.C. Thomas (2007), Terrestrial Consequences of Spectral and Temporal Variability in Ionizing Photon Events, Astrophys. J., 654, 373.
Fleming, E.L., C.H. Jackman, R.S. Stolarski, & D.B. Considine (1999), Simulation of stratospheric tracers using an improved emprirically based two-dimensional model transport formulation, J. Geophys. Res., 104, 23911-23934. [OpenAIRE]
Hallam, A. & P. Wignall (2003), Mass Extinctions and their Aftermath, Oxford Univ. Press, Oxford, UK.
Hodgson, R. (1860), On a curious appearance seen in the Sun, Mon. Not. R. Astron. Soc., 20, 15.
Heath, D. F., et al. (1977), Solar proton event: influence on stratospheric ozone, Science, 197, 886-889.
Hines, C.O., et al. (eds.) (1965), Physics of the Earth's Upper Atmosphere, 40 pp., Prentice-Hall, Englewoods Cliffs, New Jersey.
Jackman, C.H. & R.D. McPeters (1985), The Response of Ozone to Solar Proton Events During Solar Cycle 21: A Theoretical Interpretation, J. Geophys. Res., 90, 7955-7966. [OpenAIRE]
Jackman, C.H., A.R. Douglass, R.B. Rood, R.D. McPeters, & P.E. Meade (1990), Effect of Solar Proton Events on the Middle Atmosphere During the Past Two Solar Cycles as Computed Using a Two-Dimensional Model, J. Geophys. Res., 95, 7417-7428.
Jackman, C.H. et al. (1995), Two-dimensional and threedimensional model simulations, measurements, and interpretation of the influence of the October 1989 solar proton events on the middle atmosphere, J. Geophys. Res., 100, 11641-11660. [OpenAIRE]
Jackman, C.H., E.L. Fleming, S. Chandra, D.B. Considine, & J.E. Rosenfield (1996), Past, present, and future modeled ozone trends with comparisons to observed trends, J. Geophys. Res., 101, 28753-28767. [OpenAIRE]