41.
| International Association of Geodesy. Section 1 - Positioning. Quadrennial Report (1987 - 1991)
/ IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
Vienna: IUGG Vienna, 1991
Signatura: K46823
|
42.
| International Association of Geodesy - Working Group 2 (WG2): World Gravity Standards - Activity report 1987 - 1991
/ Boedecker, Gerd ; IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
München: Bayer. Akad. Wissensch., 1991
Signatura: K46822
|
43.
| Indian Natonal Report 1987 - 90
/ IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
Ryderabad: National Geophysical Research Institute, 1991
Signatura: K46849
|
44.
| Global Recovery of the Geopotential from Satellite Gravity Gradiometry: A Simulation
/ Balmino, G. ; Barriot, J.P. ; IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
Toulouse: CNES, 1991
Signatura: K46862
|
45.
| Geodetic Work in the Netherlands. 1987 - 1990
/ IUGG XX General Assembly IAG, Vienna, August 11-24, 1991=
Delft: Nederl. Comm. Geod., 1991
Signatura: K46843
|
46.
| Geodetic Operations in Finland 1987 - 1991
/ IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
Helsinki: Fin. Geod. Inst., 1991
Signatura: K46852
|
47.
| Geodetic Activities in Sweden 1987 - 1990
/ IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
Gävle: Landmateriet, 1991
Signatura: K46840
|
48.
| Geodesy. Italian research activity 1987 - 1990. Report to IAG
/ Morelli, C. ; IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
Trieste: Univ. Instituto di Miniere e Geofisica Applicata, 1990
Signatura: K46844
|
49.
| Geodesy in Canada. National Report for 1987 - 90
/ Mainville, Andre ; IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
[S.l.]: [s.n.], 1991
Signatura: K46856
|
50.
| Developments in Local Gravity Field Approximation - a review of SSG 4.91 topics and a future outlook
/ Forsberg, Rene ; IUGG XX General Assembly IAG, Vienna, August 11-24, 1991
Copenhagen: Geod.-Seismic. Division, 1991
Signatura: K46830
|