%0 Journal article %A Höpfner, Joachim %T Seasonal length of day changes and atmospheric angular momentum oscillations in their temporal variability %R 10.23689/fidgeo-539 %J Scientific Technical Report / Geoforschungszentrum Potsdam %I GFZ%C Helmholtz-Zentrum %U http://hdl.handle.net/11858/00-1735-0000-0001-32AB-9 %~ FID GEO-LEO e-docs