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.
1931
1955
2021
1966
2022
1954
2004
1967
2008
2010
2016
2001
1984
2018
2020
1998
1971
1989
1959