The late 3rd millenium BC in pollen diagrams along a south-north transect from the Near East to northern Central Europe - Dörfler, Walter (2200 BC - Ein Klimasturz als Ursache für den Zerfall der alten Welt? = A climatic breakdown as a cause for the collapse of the old world? :7. Mitteldeutscher Archäologentag vom 23. bis 26. Oktober 2014 in Halle (Saale) =7th Archaeological Conference of Central Germany October 23-26, 2014 in Halle (Saale), 2015)