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.
1997
2008
2023
2021
2014
1987
1980
1995
2017
2019
2003
2015
1974
1948
2001
1957
1942