@article{gledocs_11858_00-1735-0000-0001-32A9-D, author = {Höpfner, Joachim}, title = {On the contribution of the Geodetic Institute Potsdam to the International Latitude Service}, year = {1999}, publisher = {GFZ, Helmholtz-Zentrum}, note = { \url {http://hdl.handle.net/11858/00-1735-0000-0001-32A9-D}}, }