@article{gledocs_11858_00-1735-0000-0001-32B0-C,
author = {Höpfner, Joachim},
title = {Polar motion at seasonal frequencies},
year = {1996},
publisher = {GFZ, Helmholtz-Zentrum},

note = { \url {http://hdl.handle.net/11858/00-1735-0000-0001-32B0-C}},
}