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.
1982
2017
2021
1912
2018
1980
2004
1979
2020
1984
2022
2016
1962
2011
2012
1940
2023
1958