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.
1947
2013
1977
2009
2020
1964
1957
1978
1973
2024
1971
2015
2017
2004
1995
1975
2011
2012