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.
1982
1955
2008
2021
1957
1973
1923
1964
2005
1953
1998
2012
2013
1971
1930
2022
2019
2018