★ 7.0
★ 7.1
★ 7.5
★ 10.0
★ 0.0
★ 6.5
★ 9.0
★ 6.9
★ 5.0
★ 8.0
★ 7.3
★ 4.5
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.