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.
1993
1960
2021
2017
1925
1896
2018
1897
1994
1975
1932
1973
—
2013
1939
2008
1965
1977