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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1967
1969
2007
1965
1988
2018
1958
1981
2009
1975
1952
1895
2015
2023
1964
2021
1936