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.
1968
1938
1959
1929
2008
1997
1999
2003
2024
1992
1979
1956
2013
2011
1964
1947
2000
1969
1975
1996