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.
1972
1970
2020
2005
1967
2013
1977
2017
1981
1966
1964
1983
1899
2014
1978
2010
2022
2019
1949