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.
2023
1973
1967
2015
2008
1940
1975
2018
2020
1950
2024
2002
1935
2017
1958
1964
2019
2016
2021