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.
1986
2011
1949
1962
1958
1969
2015
2019
2021
1968
2013
1967
1975
1957
2024
1959
2020