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.
1952
1936
2019
1896
1927
1895
1953
2022
2016
1932
1938
1958
1951
2023
2018
1968
2007
2015