GPS Processing at GFZ for the IGS 1992 Campaign Angermann, D. ; Galas, R. ; Nischan, Th. ; Reigber, Ch. ; Zhu, S. Y. ; Dick, G. ; Sommerfeld, W. Abstract Publication: Geodesy and Physics of the Earth: Geodetic Contributions to Geodynamics Pub Date: 1992 Bibcode: 1992gpe..conf...14A