Official issue : 13th quarterly status report from 07/1991 to 09/1991 on programmatic overview, relations with other programmes, Columbus technical baseline, manned elements, polar platform, ground segment and operations preparation, utilisation preparation, long-term programme office activities. As annexes: technical data sheets of Columbus, major milestones, cost at completion, geographical return, Hermes overall development schedule for phase 1, schedule for the development programme and manned elements and polar platform, ESA/NASA priority 1 issues

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