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.
1987
2024
2013
1961
2017
2016
—
2020
1955
1963
2023
2018
2002
1969
1974
1952
2015