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.
1964
2001
1962
1963
2019
2018
2020
1995
2025
2009
1993
1961
2022
2002
2024
1933
1947
2007
1904