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.
1970
2023
2005
1961
1986
2015
2021
2017
2012
2019
1958
1981
2018
2020
1982
1956
2025