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.
2007
1968
2012
1964
2021
1995
1982
2003
2015
1976
1958
1974
2017
1979
1952
1989
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