1. Interdecadal changes of surface temperature since the late nineteenth century;Parker;J Geophys Res,1994
2. Solar variability and global warming: a statistical comparison since 1850;Krivova;Adv Space Res,2004
3. Can solar variability explain global warming since 1970?;Solanki;J Geophys Res,2003
4. Callebaut DK. Approach of a deep minimum in cycle 26 and effect on climate. In: First middle east and Africa IAU-regional meeting proceedings-MEARIM; 2008. p. 227–30.
5. A standard law for the equatorward drift of the sunspot zones;Hathaway;Solar Phys,2011