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.
1990
2019
2014
1969
2010
1941
1970
2001
1965
1974
2021
2013
1944
1939
2016
2003
2017
2009