TY - JOUR A1 - Höpfner, Joachim T1 - Parameter variability of the observed polar motions with smaller amplitudes T1 - paper presented at the XXVII general assembly European Geophysical Society, Nice, France, 22 - 26 April, 2002 Y1 - 2002 JF - Scientific Technical Report / Geoforschungszentrum Potsdam DO - 10.23689/fidgeo-606 PB - GFZ CY - Helmholtz-Zentrum UR - http://hdl.handle.net/11858/00-1735-0000-0001-32EF-F ER -