Cite this paper
Singh, S. , Shrivastava, D. , Lahauriya, S. and Mishra, A. (2012) Comparative study of solar cycles 22 to 24 in relation to solar output variability. Natural Science
, 349-354. doi: 10.4236/ns.2012.46048
 Dubey, S.C. and Mishra, A.P. (2000) Solar wind streams and intense geomagnetic storms observed during 1986- 1991. Earth Moon and Planets (Netherlands), 84, 23-31.
 Dubey, S.C. and Mishra, A.P. (2001) Study of the solar wind streams associated with intense geomagnetic storms. Bulletin of the Astronomical Society of India, 29, 127- 134.
 Dubey, S.C. and Mishra, A.P. (2000) Characteristics of large geomagnetic storms observed during solar cycle 22. Indian Journal of Radio and Space Physics, 29, 51.
 Mursala, K. and Ulich, T. (1998) A new method to determine the solar cycle length. Geophysical Research Letters, 25, 1837-1840. doi:10.1029/98GL51317
 Lean, J., Skumanich, A. and White, O. (1992) Estimating the Sun’s radiative output during the maunder minimum. Geophysical Research Letters, 19, 1591-1594.
 Kane, R.P. (2002). Some implications using the group sunspot number reconstruction. Solar Physics, 205, 383- 401
 The Sun. Did you say the Sun has spot? Space Today Online. http://www.spacetoday.org/SolSys/Sun/Sunspots.html. Retrieved 12 August 2010.
 Feynman, J. and Gu, X.Y. (1986) Prediction of geomagnetic activity on time scales of one to ten years. Reviews of Geophysics, 24, 650-666.
 Loehle, C. (2007) A 2000-year global temperature reconstruction based on non-treering proxies. Energy and Environment, 18, 1049-1058.
 Brown, G.M. and Williams, W.R. (1969) Some properties of the day-to-day variability of Sq(H). Planetary and Space Science, 17, 455-469.