K. E. Gabanyi (1,2), N. Marchili (3), T. P. Krichbaum (3), S. Britzen
  (3), L. Fuhrmann (3), A. Witzel (3), J. A. Zensus (3), P. Muller (3), X. Liu
  (4), H. G. Song (4), J. L. Han (5), X. H. Sun (5) ((1) Hungarian Academy of
  Sciences, Research Group for Physical Geodesy and Geodynamics, (2) FOMI,
  Satellite Geodetic Observatory, Budapest, Hungary (3) Max-Planck-Institut fur
  Radioastronomie, (4) Urumqi Observatory, the National Astronomical
  Observatories, the Chinese Academy of Sciences, (5) National Astronomical
  Observatories, Chinese Academy of Sciences)