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.
1964
2015
2016
2014
1934
2017
1995
2018
1972
1962
1974
2019
1987
1951
1996
2023
2012
1942