%0 Journal article %A Höpfner, Joachim %T On the contribution of the Geodetic Institute Potsdam to the International Latitude Service %O paper presented on the occasion of the centennial of the first observations of the International Latitude Service in 1999 %R 10.23689/fidgeo-537 %J Scientific Technical Report / Geoforschungszentrum Potsdam %I GFZ%C Helmholtz-Zentrum %U http://hdl.handle.net/11858/00-1735-0000-0001-32A9-D %~ FID GEO-LEO e-docs