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Relationship between coal and black oils in the west European fuel market
United Nations / Economic Commission for Europe - 1954
Persistent link: https://www.econbiz.de/10003077656
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Trends in research on human settlements in ECE countries
1990
Persistent link: https://www.econbiz.de/10014270232
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Major trends characterizing human settlements development in the ECE region
1998
Persistent link: https://www.econbiz.de/10014273856
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Symposium on the Use of Electronic Computers in the Coal Industry
1971
Persistent link: https://www.econbiz.de/10001412275