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.
1979
2014
2020
1964
2024
2019
1996
2016
1995
1968
1906
2015
1988
2022
2021
1963
1929