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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1972
2022
2017
1984
1991
1969
1959
2020
1897
1936
1964
2019
1977
2016
1965
2025