Hiromichi Nagao Tomoyuki Higuchi Toshihiko Iyemori Tohru Araki Automatic Detection of Geomagnetic Jerks by Applying a Statistical Time Series Model to Geomagnetic Monthly Means. 360-371 2002 conf/dsp/2002 Progress in Discovery Science http://link.springer.de/link/service/series/0558/bibs/2281/22810360.htm db/conf/dsp/dsp2002.html#NagaoHIA02