Studies on the photographic astrolabe built in Turku Observatory : a technical report and an analysis of the results obtained during the test period 1977-1978
Studies on the photographic astrolabe built in Turku Observatory : a technical report and an analysis of the results obtained during the test period 1977-1978
Studies on the photographic astrolabe built in Turku Observatory : a technical report and an analysis of the results obtained during the test period 1977-1978
Studies on the photographic astrolabe built in Turku Observatory : a technical report and an analysis of the results obtained during the test period 1977-1978