TY - JOUR A1 - Höpfner, Joachim T1 - Atmospheric, oceanic and hydrological contributions to seasonal variations in length of day T1 - paper presented at the XXV General Assembly, European Geophysical Society, Nice, France, 25-29 April 2000 Y1 - 2000 JF - Scientific Technical Report / Geoforschungszentrum Potsdam DO - 10.23689/fidgeo-533 PB - GFZ CY - Helmholtz-Zentrum UR - http://hdl.handle.net/11858/00-1735-0000-0001-32A5-6 ER -