68 69 SCAR Scientific Committee on Antarctic Research SPE 91 Geowissenschaftliche Spitzbergen Expedition 1991 TAMARA Transantarctic Mountains Aerogeophysical Research Activities UNO United Nations Organization UNIS The University Centre in Svalbard USAP United States Antarctic Program USGS United States Geological Survey VSEGEI A P Karpinsky All Russian Geological Research Institute St Petersburg WTZ Wissenschaftlich Technologische Zusammenarbeit