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
2000
1950
2009
1957
2001
2013
1974
2023
2022
1989
2012
2019
2018
1963
2021
1977
2015