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.
2017
2006
1961
1983
2023
1962
1981
1951
1978
1976
1956
2020
1966
2018
2024
1969
2019
1979