Evidence for climate change between 2200 BC and 2160 BC derived from subfossil bog and riverine trees from Germany - Bauerochse, Andreas (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)