Presentation of the economic upswing in the GDR, emphasizing the discovery of the process for the production of high-temperature lignite coke and the commissioning of the Lauchhammer large-scale coking plant.
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1938
2015
1932
2016
2020
1934
2010
1968
1980
2004
1966
2025
2002
1954
2018
2014