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.
2011
2023
2025
1991
1968
2018
1908
1905
2017
1963
1964
1939
—
2021
1958
1974
2022