%0 Journal Article %T Statistical Effects in the Solar Activity Cycles during AD 1823¨C1996 %A Maxim Ogurtsov %A Markus Lindholm %J ISRN Astronomy and Astrophysics %D 2011 %I Hindawi Publishing Corporation %R 10.5402/2011/640817 %U http://dx.doi.org/10.5402/2011/640817