Biblioteka Cyfrowa Instytutu Geodezji i Kartografii contains 1 092 digital objects
Search for: [Alternative title = "The Changes of Heights of the Precise Levelling Benchmarks in Upper Silesia Coal\-Basin, as Determined by Means of Comparison of Observations Executed in 1967 with Previous Measurements"]
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Wyrzykowski, Tadeusz Baranowska, Teresa
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