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.
1935
1961
1965
1940
2019
2023
1984
1966
1906
1997
1912
1978
1988
1950
1971
2024
1992
2014